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18.4_Wind
18.4.1_The simplest method of estimating the wind
direction and velocity is to examine the wind streaks
on the water. These appear as long streaks up and
down wind. Some persons may have difficulty
determining wind direction after seeing the streaks in
the water. Whitecaps fall forward with the wind but
are overrun by the waves thus producing the illusion
that the foam is sliding backward. Knowing this, and
by observing the direction of the streaks, the wind
AIP
United States of America
GEN 3.6-18
15 MAR 07
Federal Aviation Administration Nineteenth Edition
direction is easily determined. Wind velocity can be
accurately estimated by noting the appearance of the
whitecaps, foam and wind streaks.
18.5_Preditching Preparation
18.5.1_A successful aircraft ditching is dependent on
three primary factors. In order of importance they are:
18.5.1.1_Sea conditions and wind.
18.5.1.2_Type of aircraft.
18.5.1.3_Skill and technique of pilot.
18.5.2_The behavior of the aircraft on making
contact with the water will vary within wide limits
according to the state of the sea. If landed parallel to
a single swell system, the behavior of the aircraft may
approximate that to be expected on a smooth sea. If
landed into a heavy swell or into a confused sea, the
deceleration forces may be extremely great_-
resulting in breaking up of the aircraft. Within certain
limits, the pilot is able to minimize these forces by
proper sea evaluation and selection of ditching
heading.
18.5.3_When on final approach the pilot should look
ahead and observe the surface of the sea. There may
be shadows and whitecaps - signs of large seas.
Shadows and whitecaps close together indicate that
the seas are short and rough. Touchdown in these
areas is to be avoided. Select and touchdown in any
area (only about 500 feet is needed) where the
shadows and whitecaps are not so numerous.
18.5.4_Touchdown should be at the lowest speed and
rate of descent which permit safe handling and
optimum nose up attitude on impact. Once first
impact has been made there is often little the pilot can
do to control a landplane.
18.6_Ditching
18.6.1_Once preditching preparations are completed,
the pilot should turn to the ditching heading and
commence letdown. The aircraft should be flown low
over the water, and slowed down until ten knots or so
above stall. At this point, additional power should be
used to overcome the increased drag caused by the
noseup attitude. When a smooth stretch of water
appears ahead, cut power, and touchdown at the best
recommended speed as fully stalled as possible. By
cutting power when approaching a relatively smooth
area, the pilot will prevent over shooting and will
touchdown with less chance of planing off into a
second uncontrolled landing. Most experienced
seaplane pilots prefer to make contact with the water
in a semi-stalled attitude, cutting power as the tail
makes contact. This technique eliminates the chance
of misjudging altitude with a resultant heavy drop in
a fully stalled condition. Care must be taken not to
drop in a fully stalled condition. Care must be taken
not to drop the aircraft from too high altitude, or to
balloon due to excessive speed. The altitude above
water depends on the aircraft. Over glassy smooth
water, or at night without sufficient light, it is very
easy for even the most experienced pilots to misjudge
altitude by 50 feet or more. Under such conditions,
carry enough power to maintain 9_ to 12_ noseup
attitude, and 10_ to 20_ over stalling speed until
contact is made with the water. The proper use of
power on the approach is of great importance. If
power is available on one side only, a little power
should be used to flatten the approach; however, the
engine should not be used to such an extent that the
aircraft cannot be turned against the good engines
right down to the stall with a margin of rudder
movement available. When near the stall, sudden
application of excessive unbalanced power may
result in loss of directional control. If power is
available on one side only, a slightly higher than
normal glide approach speed should be used. This
will insure good control and some margin of speed
after leveling off without excessive use of power. The
use of power in ditching is so important that when it
is certain that the coast cannot be reached, the pilot
should, if possible, ditch before fuel is exhausted. The
use of power in a night or instrument ditching is far
more essential than under daylight contact conditions.
18.6.2_If no power is available, a greater than normal
approach speed should be used down to the flare-out.
This speed margin will allow the glide to be broken
early and more gradually, thereby giving the pilot
time and distance to feel for the surface - decreasing
the possibility of stalling high or flying into the water.
When landing parallel to a swell system, little
difference is noted between landing on top of a crest
or in the trough. If the wings of the aircraft are
trimmed to the surface of the sea rather than the
horizon, there is little need to worry about a wing
hitting a swell crest. The actual slope of a swell is very
gradual. If forced to land into a swell, touchdown
should be made just after passage of the crest. If
contact is made on the face of the swell, the aircraft
AIP
United States of America
GEN 3.6-19
15 MAR 07
Federal Aviation Administration Nineteenth Edition
may be swamped or thrown violently into the air,
dropping heavily into the next swell. If control
surfaces remain intact, the pilot should attempt to
maintain the proper nose attitude by rapid and
positive use of the controls.
18.7_After Touchdown
18.7.1_In most cases drift caused by crosswind can
be ignored; the forces acting on the aircraft after
touchdown are of such magnitude that drift will be
only a secondary consideration. If the aircraft is under
good control, the _crab" may be kicked out with
rudder just prior to touchdown. This is more
important with high wing aircraft, for they are
laterally unstable on the water in a crosswind, and
may roll to the side in ditching.
NOTE-
This information has been extracted from the publication
_Aircraft Emergency Procedures Over Water."
19. Fuel Dumping
19.1_Should it become necessary to dump fuel, the
pilot should immediately advise ATC. Upon receipt
of advice that an aircraft will dump fuel, ATC will
broadcast or cause to be broadcast immediately and
every 3 minutes thereafter on appropriate ATC, FSS,
and airline company radio frequencies the following:
EXAMPLE-
ATTENTION ALL AIRCRAFT-FUEL DUMPING IN
PROGRESS-OVER (location) AT (altitude) BY (type
aircraft) (flight direction).
19.2_Upon receipt of such a broadcast, pilots of
aircraft affected, which are not on IFR flight plans or
special VFR clearances, should clear the area
specified in the advisory. Aircraft on IFR flight plans
or special VFR clearances will be provided specific
separation by ATC. At the termination of the fuel
dumping operation, pilots should advise ATC. Upon
receipt of such information, ATC will issue, on
appropriate frequencies, the following:
EXAMPLE-
ATTENTION ALL AIRCRAFT-FUEL DUMPING BY-
(type aircraft) TERMINATED.
20. Special Emergency (Air Piracy)
20.1_A special emergency is a condition of air piracy,
or other hostile act by a person(s) aboard an aircraft,
which threatens the safety of the aircraft or its
passengers.
20.2_The pilot of an aircraft reporting a special
emergency condition should:
20.2.1_If circumstances permit, apply distress or
urgency radio - telephony procedures. Include the
details of the special emergency.
20.2.2_If circumstances do not permit the use of
prescribed distress or urgency procedures, transmit:
20.2.2.1_On the air-ground frequency in use at the
time.
20.2.2.2_As many as possible of the following
elements spoken distinctly and in the following order.
a)_Name of the station addressed (time and
circumstances permitting).
b)_The identification of the aircraft and present
position.
c)_The nature of the special emergency condition
and pilot intentions (circumstances permitting).
d)_If unable to provide this information, use code
words and/or transponder setting for indicated
meanings as follows:
Spoken Words
TRANSPONDER SEVEN FIVE ZERO ZERO
Meaning
Am being hijacked/forced to a new destination
Transponder Setting
Mode 3/A, Code 7500
NOTE-
Code 7500 will never be assigned by ATC without prior
notification from the pilot that the aircraft is being
subjected to unlawful interference. The pilot should refuse
the assignment of this code in any other situation and
inform the controller accordingly. Code 7500 will trigger
the special emergency indicator in all radar ATC facilities.
20.3_Air traffic controllers will acknowledge and
confirm receipt of transponder Code 7500 by asking
the pilot to verify it. If the aircraft is not being
subjected to unlawful interference, the pilot should
respond to the query by broadcasting in the clear that
the aircraft is not being subjected to unlawful
interference. Upon receipt of this information, the
controller will request the pilot to verify the code
selection depicted in the code selector windows in the
transponder control panel and change the code to the
appropriate setting. If the pilot replies in the
affirmative or does not reply, the controller will not
AIP
United States of America
GEN 3.6-20
15 MAR 07
Federal Aviation Administration Nineteenth Edition
ask further questions but will flight follow, respond to
pilot requests, and notify appropriate authorities.
20.4_If it is possible to do so without jeopardizing the
safety of the flight, the pilot of a hijacked U.S.
passenger aircraft, after departing from the cleared
routing over which the aircraft was operating, will
attempt to do one or more of the following things
insofar as circumstances may permit:
20.4.1_Maintain a true airspeed of no more than
400_knots and, preferably, an altitude of between
10,000 and 25,000 feet.
20.4.2_Fly a course toward the destination which the
hijacker has announced.
20.5_If these procedures result in either radio contact
or air intercept, the pilot will attempt to comply with
any instructions received which may direct him/her to
an appropriate landing field._
21. FAA K-9 Explosives Detection Team
Program
21.1_The FAA’s Office of Civil Aviation Security
Operations manages the FAA K-9 Explosives
Detection Team Program, which was established in
1972. Through a unique agreement with law
enforcement agencies and airport authorities, the
FAA has strategically placed FAA-certified K-9
teams (a team is one handler and one dog) at airports
throughout the country. If a bomb threat is received
while an aircraft is in flight, the aircraft can be
directed to an airport with this capability.
21.2_The FAA provides initial and refresher training
for all handlers, provides single purpose explosive
detector dogs, and requires that each team is annually
evaluated in five areas for FAA certification: aircraft
(wide body and narrow body), vehicles, terminal,
freight, (cargo), and luggage. If you desire this
service, notify your company or an FAA air traffic
control facility.
21.3_FAA Sponsored Explosives Detection Dog/
Handler Team Locations
TBL GEN 3.6-5
Airport Symbol Location
ATL Atlanta, Georgia
BHM Birmingham, Alabama
BOS Boston, Massachusetts
BUF Buffalo, New York
CLT Charlotte, North Carolina
ORD Chicago, Illinois
CVG Cincinnati, Ohio
DFW Dallas, Texas
DEN Denver, Colorado
DTW Detroit, Michigan
IAH Houston, Texas
JAX Jacksonville, Florida
MCI Kansas City, Missouri
LAX Los Angeles, California
MEM Memphis, Tennessee
MIA Miami, Florida
MKE Milwaukee, Wisconsin
MSY New Orleans, Louisiana
MCO Orlando, Florida
PHX Phoenix, Arizona
PIT Pittsburgh, Pennsylvania
PDX Portland, Oregon
SLC Salt Lake City, Utah
SFO San Francisco, California
SJU San Juan, Puerto Rico
SEA Seattle, Washington
STL St. Louis, Missouri
TUS Tucson, Arizona
TUL Tulsa, Oklahoma
21.4_If due to weather or other considerations an
aircraft with a suspected hidden explosive problem
were to land or intended to land at an airport other
than those listed above, it is recommended they call
the FAA’s Washington Operations Center (telephone
202-267-3333, if appropriate) or have an air traffic
facility with which you can communicate contact the
above center requesting assistance.
AIP
United States of America
GEN 3.7-1
15 MAR 07
Federal Aviation Administration Nineteenth Edition
GEN 3.7 Aircraft Rescue and
Fire Fighting Communications
1. Discrete Emergency Frequency
1.1_Direct contact between an emergency aircraft
flight crew, Aircraft Rescue and Fire Fighting
Incident Commander (ARFF IC), and the Airport
Traffic Control Tower (ATCT) is possible on an
aeronautical radio frequency (Discrete Emergency
Frequency [DEF]) designated by Air Traffic Control
(ATC) from the operational frequencies assigned to
that facility.
1.2_Emergency aircraft at airports without an ATCT
(or when the ATCT is closed) may contact the
ARFF_IC (if ARFF service is provided) on the
Common Traffic Advisory Frequency (CTAF)
published for the airport or the civil emergency
frequency 121.5 MHz.
2. Radio Call Signs
Preferred radio call sign for the ARFF IC is
_(location/facility) Command" when communicating with the flight crew and the FAA ATCT.
EXAMPLE- LAX Command.
Washington Command.
3. ARFF Emergency Hand Signals
In the event that electronic communications cannot
be maintained between the ARFF IC and the flight
crew, standard emergency hand signals as depicted in
FIG GEN 3.7-1 through FIG GEN 3.7-3 should be
used. These hand signals should be known and
understood by all cockpit and cabin aircrew, and all
ARFF firefighters.
FIG GEN 3.7-1
FIG GEN 3.7-2
AIP
United States of America
GEN 3.7-2
15 MAR 07
Federal Aviation Administration Nineteenth Edition
FIG GEN 3.7-3
AIP
United States of America
GEN 4.1-1
15 MAR 07
Federal Aviation Administration Nineteenth Edition
GEN 4. CHARGES FOR AERODROMES/HELIPORTS
AND AIR NAVIGATION SERVICES
GEN 4.1 Fees and Charges
1. General
1.1_Charges for services and facilities vary from
aerodrome to aerodrome, and information concerning such charges may be obtained at the aerodromes.
Unless alternative arrangements have been made, all
charges for the use of the aerodrome, such as landing
fees, passenger service charges, cargo charges,
storage charges, and the like, are payable on demand
or before the aircraft departs the aerodrome. All such
charges are established by and payable to the various
administrative authorities of the various aerodromes.
1.2_A private aircraft will be charged a processing
fee of $25 once every calendar year. This will be
charged the first time the aircraft arrives from a
foreign place in the calender year or may be paid in
advance. This fee is charged to the aircraft, not the
pilot, and the receipt should be kept with the aircraft.
1.3_Commercial aircraft operators will be charged a
processing fee of $5 per paying passenger for each
arrival from foreign to the U.S. This fee will not be
charged for passengers arriving from Canada,
Mexico, and certain nearby Caribbean countries.
2. Charges for Inspection Services
2.1_Generally speaking, free service is provided at
airports during regular business hours (usually
8_a.m. to 5 p.m.), Monday through Saturday, and
from 8 a.m. to 5 p.m. on Sundays and national
holidays. However, tours of duty at airports are based
on the need for services and are altered at some ports
to coincide with schedule changes and peak
workloads.
2.2_Overtime charges may be imposed, in certain
cases, for Immigration and Naturalization Services
and Public Health Service quarantine inspection of
aircraft whose operations are not covered by
published schedules. Information concerning such
charges may be obtained from the Immigration and
Naturalization Office and the Public Health Service
Medical Officer in Charge at, or nearest, the intended
place of landing.
3. Penalties for Violations
3.1_Since the law provides for substantial penalties
for violations of the Customs regulations, aircraft
operators and pilots should make every effort to
comply with them.
3.2_A $5,000 penalty will be assessed for common
violations such as:
3.2.1_Failure to report arrival.
3.2.2_Failure to obtain landing rights.
3.2.3_Failure to provide advance notice of arrival.
3.2.4_Failure to provide penetration report on
southern border.
3.2.5_Departing without permission or discharging
passengers or cargo without permission.
REFERENCE-
19 CFR 122.161.
NOTE-
1._Importation of contraband, including agricultural
materials, or undeclared merchandise can result in penalty
action and seizure of aircraft, which varies according to the
nature of the violation and pertinent provision of law.
2._The above penalties are double to $10,000 for a second
offense. Seizure of aircraft may occur at any time
depending upon the circumstances behind the violation.
3._If a penalty is incurred, application may be made to the
customs officer in charge for a reduction in amount or
cancellation, giving the grounds upon which relief is
believed to be justified. If the operator or pilot desires to
petition further for relief of the penalty, he/she may appeal
to the appropriate district Director of Customs. If still
further review of the penalty is desired, written appeal may
be made to the proper regional Commissioner of Customs
and, in some cases, to Customs Headquarters.
3.3_Any person violating any provision of the Public
Health Service regulations shall be subject to a fine of
not more than $1,000 or to imprisonment for not more
than 1 year, or both, as provided in section 368 of the
Public Health Service Act (42 U.S.C. 271).
AIP
United States of America
GEN 4.2-1
15 MAR 07
Federal Aviation Administration Nineteenth Edition
GEN 4.2 Air Navigation Facility Charges
The Federal Aviation Administration does not charge
for the use of Federal air navigation facilities or
telecommunications services.
AIP
AERONAUTICAL INFORMATION PUBLICATION
UNITED STATES OF AMERICA
PART 2
EN ROUTE (ENR)
AIP ENR 0.4-1
United States of America 15 MAR 07
Federal Aviation Administration Nineteenth Edition
PART 2 -EN ROUTE (ENR)
ENR 0.
ENR 0.1 Preface -Not applicable
ENR 0.2 Record of AIP Amendments -See GEN 0.2-1
ENR 0.3 Record of AIP Supplements -Not applicable
ENR 0.4 Checklist of Pages
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Federal Aviation Administration
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5.7-7 31 JULY 08
5.7-8 31 JULY 08
5.7-9 31 JULY 08
5.7-10 31 JULY 08
5.7-11 31 JULY 08
5.7-12 31 JULY 08
PAGE DATE
5.7-13 31 JULY 08
5.7-14 31 JULY 08
ENR 6
6.1-1 15 MAR 07
6.1-2 15 MAR 07
6.1-3 15 MAR 07
6.1-4 15 MAR 07
6.1-5 15 MAR 07
6.1-6 15 MAR 07
6.2-1 15 MAR 07
6.2-2 15 MAR 07
6.2-3 15 MAR 07
6.2-4 15 MAR 07
6.2-5 15 MAR 07
6.2-6 15 MAR 07
6.2-7 15 MAR 07
6.2-8 15 MAR 07
6.2-9 15 MAR 07
6.2-10 15 MAR 07
6.2-11 15 MAR 07
6.2-12 15 MAR 07
6.2-13 15 MAR 07
6.2-14 15 MAR 07
6.2-15 15 MAR 07
6.2-16 15 MAR 07
6.2-17 31 JULY 08
6.2-18 31 JULY 08
PAGE DATE
ENR 0.5 List of Hand Amendments to the AIP -Not applicable
31 JULY 08
AIP ENR 0.6-1
United States of America 15 MAR 07
Federal Aviation Administration Nineteenth Edition
ENR 0.6 Table of Contents to Part 2
Page
ENR 1. GENERAL RULES AND PROCEDURES
ENR 1.1 General Rules ENR 1.1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENR 1.2 Visual Flight Rules ENR 1.2-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENR 1.3 Instrument Flight Rules ENR 1.3-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENR 1.4 ATS Airspace Classification ENR 1.4-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENR 1.5 Holding, Approach, and Departure Procedures ENR 1.5-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENR 1.6 [Reserved] ENR 1.6-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENR 1.7 Altimeter Setting Procedures ENR 1.7-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENR 1.8 [Reserved] ENR 1.8-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENR 1.9 [Reserved] ENR 1.9-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENR 1.10 Flight Planning (Restriction, Limitation or Advisory Information) ENR 1.10-1 . . . . . . . . . . .
ENR 1.11 [Reserved] ENR 1.11-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENR 1.12 Interception of Civil Aircraft, National Security and Interception Procedures ENR 1.12-1 . . .
ENR 1.13 [Reserved] ENR 1.13-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENR 1.14 [Reserved] ENR 1.14-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENR 1.15 Medical Facts for Pilots ENR 1.15-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENR 1.16 Safety, Hazard, and Accident Reports ENR 1.16-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENR 1.17 North Atlantic (NAT) Timekeeping Procedures ENR 1.17-1 . . . . . . . . . . . . . . . . . . . . . . . . . .
ENR 1.18 Area Navigation (RNAV) and Required Navigation Performance (RNP) ENR 1.18-1 . . . . . .
ENR 2. AIR TRAFFIC SERVICES AIRSPACE ENR 2-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENR 3. ATS ROUTES
ENR 3.1 [Reserved] ENR 3.1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENR 3.2 [Reserved] ENR 3.2-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENR 3.3 Area Navigation (RNAV) Routes ENR 3.3-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENR 3.4 [Reserved] ENR 3.4-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENR 3.5 Other Routes ENR 3.5-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENR 4. NAVIGATION AIDS/SYSTEMS
ENR 4.1 Navigation Aids - En Route ENR 4.1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENR 4.2 Special Navigation Systems ENR 4.2-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENR 5. NAVIGATION WARNINGS
ENR 5.1 Prohibited, Restricted, and Other Areas ENR 5.1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENR 5.2 Military Exercise and Training Areas ENR 5.2-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENR 5.3 [Reserved] ENR 5.3-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENR 5.4 [Reserved] ENR 5.4-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENR 5.5 [Reserved] ENR 5.5-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENR 5.6 Bird Migration and Areas with Sensitive Fauna ENR 5.6-1 . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENR 5.7 Potential Flight Hazards ENR 5.7-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENR 6. HELICOPTER OPERATIONS
ENR 6.1 Helicopter IFR Operations ENR 6.1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENR 6.2 Special Operations ENR 6.2-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AIP ENR 1.1-1
United States of America 15 MAR 07
Federal Aviation Administration Nineteenth Edition
ENR 1. GENERAL RULES AND PROCEDURES
ENR 1.1 General Rules
1. Differences between National and
International Rules and Procedures
1.1_The air traffic rules and procedures applicable to
air traffic in U.S. Class A, B, C, D and E airspace
conform with Annexes 2 and 11 to the Convention on
International Civil Aviation and to those portions
applicable to aircraft in the Procedures for Air
Navigation Services -Rules of the Air and Air Traffic
Services (Doc 4444 - RAC/501/10) and to the
Regional Supplementary Procedures (DOC_7030)
applicable to the NAM, NAT, CAR and PAC Regions,
except as noted in the cases below. All differences
have been registered with the International Civil
Aviation Organization.
1.1.1_Annex 3 - Rules of the Air
NOTE-
See GEN 1.7.
1.1.2_Annex 11 - Air Traffic Services
NOTE-
See GEN 1.7.
1.1.3_Procedures for Air Navigation Services -
Rules of the Air (DOC 4444) and Air Traffic
Services (RAC/501/10)
NOTE-
See GEN 1.7.
1.1.4_Regional Supplementary Procedures
(Doc_7030)
NOTE-
See GEN 1.7.
2. Airport Operations
2.1_General
2.1.1_Increased traffic congestion, aircraft in climb
and descent attitudes, and pilots preoccupation with
cockpit duties are some factors that increase the
hazardous accident potential near the airport. The
situation is further compounded when the weather is
marginal; that is, just meeting VFR requirements.
Pilots must be particularly alert when operating in the
vicinity of an airport. This section defines some rules,
practices, and procedures that pilots should be
familiar with, and adhere to, for safe airport
operations.
2.1.2_Each airport operator regularly serving scheduled air carriers has put into use security measures
designed to prevent or deter unauthorized persons
from having access to _Air Operations Area." The
_Air Operations Area" means any area of the airport
used or intended to be used for landing, takeoff, or
surface maneuvering of aircraft. Pilots are encouraged to obtain airport security instructions by posted
signs or radio communication.
3. Airports With an Operating Control Tower
3.1_Towers have been established to provide for a
safe, orderly, and expeditious flow of traffic on and in
the vicinity of an airport. When the responsibility has
been so delegated, towers also provide for the
separation of IFR aircraft in the terminal areas
(Approach Control).
3.2_When operating at an airport where traffic
control is being exercised by a control tower, pilots
are required to maintain two-way radio contact with
the tower while operating within the Class B,
Class_C, and Class D surface area unless the tower
authorizes otherwise. Initial callup should be made
about 15 miles from the airport. Unless there is a good
reason to leave the tower frequency before exiting the
Class B, Class C, and Class D surface area, it is a good
operating practice to remain on the tower frequency
for the purpose of receiving traffic information. In the
interest of reducing tower frequency congestion,
pilots are reminded that it is not necessary to request
permission to leave the tower frequency once outside
of Class B, Class C, and Class D surface area. Not all
airports with an operating control tower will have
Class D airspace. These airports do not have weather
reporting which is a requirement for surface-based
controlled airspace, previously known as a control
zone. The controlled airspace over these airports will
normally begin at 700 feet or 1,200 feet above ground
level and can be determined from the visual
aeronautical charts. Pilots are expected to use good
operating practices and communicate with the control
tower as described in this section.
AIP ENR 1.1-2
United States of America 15 MAR 07
Federal Aviation Administration
Nineteenth Edition
3.3_When necessary, the tower controller will issue
clearances or other information for aircraft to
generally follow the desired flight path (traffic
pattern) when flying in the Class D airspace, and the
proper taxi routes when operating on the ground. If
not otherwise authorized or directed by the tower,
pilots approach to land in an airplane must circle the
airport to the left, and pilots approaching to land in a
helicopter must avoid the flow of fixed-wing traffic.
However, an appropriate clearance must be received
from the tower before landing.
3.4_The following terminology for the various
components of a traffic pattern has been adopted as
standard for use by control towers and pilots:
3.4.1_Upwind leg._A flight path parallel to the
landing runway in the direction of landing.
3.4.2_Crosswind leg._A flight path at right angles to
the landing runway off its takeoff end.
3.4.3_Downwind leg._A flight path parallel to the
landing runway in the opposite direction of landing.
3.4.4_Base leg._A flight path at right angles to the
landing runway off its approach end and extending
from the downwind leg to the intersection of the
extended runway centerline.
3.4.5_Final approach._A flight path in the direction
of landing along the extended runway centerline from
the base leg to the runway.
FIG ENR 1.1-1
Components of a Traffic Pattern
NOTE-
FIG ENR 1.1-1 is intended only to illustrate terminology
used in identifying various components of a traffic pattern.
It should not be used as a reference or guide on how to enter
a traffic pattern.
3.5_Many towers are equipped with a tower radar
display. The radar uses are intended to enhance the
effectiveness and efficiency of the local control, or
tower, position. They are not intended to provide
radar services or benefits to pilots except as they may
accrue through a more efficient tower operation. The
four basic uses are:
3.5.1_To determine an aircraft’s exact location._This
is accomplished by radar identifying the VFR aircraft
through any of the techniques available to a radar
position; such as, having the aircraft ident. Once
identified, the aircraft’s position and spatial relationship to other aircraft can be quickly determined, and
standard instructions regarding VFR operation in the
aircraft traffic area will be issued. Once initial radar
identification of a VFR aircraft has been established
and the appropriate instructions have been issued,
radar monitoring may be discontinued; the reason
being that the local controller’s primary means of
surveillance in VFR conditions is usually scanning
the airport and local area.
3.5.2_To provide radar traffic advisories._Radar
traffic advisories may be provided to the extent that
the local controller is able to monitor the radar
display. Local control has primary control responsibilities to the aircraft operating on the runways which
will normally supersede radar monitoring duties.
3.5.3_To provide a direction or suggested heading.
The local controller may provide pilots flying VFR
with generalized instructions which will facilitate
operations; e.g., _PROCEED SOUTHWEST
BOUND, ENTER A RIGHT DOWNWIND RUN-
WAY THREE ZERO;" or provide a suggested
heading to establish radar identification or as an
advisory aid to navigation; e.g., _SUGGESTED
HEADING TWO TWO ZERO, FOR RADAR
IDENTIFICATION." In both cases, the instructions
are advisory aids to the pilot flying VFR and are not
radar vectors. PILOTS HAVE COMPLETE
DISCRETION REGARDING ACCEPTANCE OF
THE SUGGESTED HEADING OR DIRECTION
AND HAVE SOLE RESPONSIBILITY FOR
SEEING AND AVOIDING OTHER AIRCRAFT.
AIP ENR 1.1-3
United States of America 15 MAR 07
Federal Aviation Administration Nineteenth Edition
3.5.4_To provide information and instructions to
aircraft operating within Class D airspace. In an
example of this situation, the local controller would
use the radar to advise a pilot on an extended
downwind when to turn base leg.
NOTE-
The above tower radar applications are intended to
augment the standard functions of the local control
position. There is no controller requirement to maintain
constant radar identification and, in fact, such a
requirement could compromise the local controller’s
ability to visually scan the airport and local area to meet
FAA responsibilities to the aircraft operating on the
runways and within Class D airspace. Normally, pilots will
not be advised of being in radar contact since that
continued status cannot be guaranteed and since the
purpose of the radar identification is not to establish a link
for the provision of radar services.
3.6_A few of the radar-equipped towers are
authorized to use the radar to ensure separation
between aircraft in specific situations, while still
others may function as limited radar approach
controls. The various radar uses are strictly a function
of FAA operational need. The facilities may be
indistinguishable to pilots since they are all referred
to as tower and no publication lists the degree of radar
use. THEREFORE, WHEN IN COMMUNICA-
TION_WITH A TOWER CONTROLLER WHO
MAY_HAVE RADAR AVAILABLE, DO NOT
ASSUME THAT CONSTANT RADAR MON-
ITORING AND COMPLETE ATC RADAR SER-
VICES ARE BEING PROVIDED.
4. Traffic Patterns
4.1_At most airports and military air bases, traffic
pattern altitudes for propeller driven aircraft
generally extend from 600 feet to as high as 1,500 feet
above the ground. Also, traffic pattern altitudes for
military turbojet aircraft sometimes extend up to
2,500 feet above the ground. Therefore, pilots of en
route aircraft should be constantly on the alert for
other aircraft in traffic patterns and avoid these areas
whenever possible. Traffic pattern altitudes should be
maintained unless otherwise required by the
applicable distance from cloud criteria (14 CFR
Section_91.155.)
(See FIG ENR 1.1-2 and FIG ENR 1.1-3.)
4.2_Unexpected Maneuvers in the Airport Traffic
Pattern
4.2.1_There have been several incidents in the
vicinity of controlled airports that were caused
primarily by aircraft executing unexpected maneuvers. ATC service is based upon observed or known
traffic and airport conditions. Controllers establish
the sequence of arriving and departing aircraft by
requiring them to adjust flight as necessary to achieve
proper spacing. These adjustments can only be based
on observed traffic, accurate pilot reports, and
anticipated aircraft maneuvers. Pilots are expected to
cooperate so as to preclude disruption of traffic flow
or creation of conflicting patterns. The pilot in
command of an aircraft is directly responsible for and
is the final authority as to the operation of that aircraft.
4.2.2_On occasion it may be necessary for pilots to
maneuver their aircraft to maintain spacing with the
traffic they have been sequenced to follow. The
controller can anticipate minor maneuvering such as
shallow _S" turns. The controller cannot, however,
anticipate a major maneuver such as a 360-degree
turn. If a pilot makes a 360-degree turn after
obtaining a landing sequence, the result is usually a
gap in the landing interval and more importantly it
causes a chain reaction which may result in a conflict
with following traffic and interruption of the
sequence established by the tower or approach
controller. Should a pilot decide to make maneuvering turns to maintain spacing behind a preceding
aircraft, the pilot should always advise the controller
if at all possible. Except when requested by the
controller or in emergency situations, a 360-degree
turn should never be executed in the traffic pattern or
when receiving radar service without first advising
the controller.
AIP ENR 1.1-4
United States of America 15 MAR 07
Federal Aviation Administration
Nineteenth Edition
FIG ENR 1.1-2
Traffic Pattern Operations
Single Runway
EXAMPLE-
KEY TO TRAFFIC PATTERN OPERATIONS
1._Enter pattern in level flight, abeam the midpoint of the
runway, at pattern altitude. (1,000’ AGL is recommended
pattern altitude unless established otherwise.)
2._Maintain pattern altitude until abeam approach end of
the landing runway on downwind leg.
3._Complete turn to final at least 1
/4 mile from the runway.
4._Continue straight ahead until beyond departure end of
runway.
5._If remaining in the traffic pattern, commence turn to
crosswind leg beyond the departure end of the runway
within 300 feet of pattern altitude.
6._If departing the traffic pattern, continue straight out, or
exit with a 45 degree turn (to the left when in a left-hand
traffic pattern; to the right when in a right-hand traffic
pattern) beyond the departure end of the runway, after
reaching pattern altitude.
AIP ENR 1.1-5
United States of America 15 MAR 07
Federal Aviation Administration Nineteenth Edition
FIG ENR 1.1-3
Traffic Pattern Operations
Parallel Runways
EXAMPLE-
KEY TO TRAFFIC PATTERN OPERATIONS
1._Enter pattern in level flight, abeam the midpoint of the
runway, at pattern altitude. (1,000’ AGL is recommended
pattern altitude unless established otherwise.)
2._Maintain pattern altitude until abeam approach end of
the landing runway on downwind leg.
3._Complete turn to final at least 1
/4 mile from the runway.
4._Continue straight ahead until beyond departure end of
runway.
5._If remaining in the traffic pattern, commence turn to
crosswind leg beyond the departure end of the runway
within 300 feet of pattern altitude.
6._If departing the traffic pattern, continue straight out, or
exit with a 45 degree turn (to the left when in a left-hand
traffic pattern; to the right when in a right-hand traffic
pattern) beyond the departure end of the runway, after
reaching pattern altitude.
7._Do not overshoot final or continue on a track which will
penetrate the final approach of the parallel runway.
8._Do not continue on a track which will penetrate the
departure path of the parallel runway.
AIP ENR 1.1-6
United States of America 15 MAR 07
Federal Aviation Administration
Nineteenth Edition
5. Visual Indicators at Airports Without an
Operating Control Tower
5.1_At those airports without an operating control
tower, a segmented circle visual indicator system, if
installed, is designed to provide traffic pattern
information. The segmented circle system consists of
the following components:
5.1.1_The Segmented Circle._Located in a position
affording maximum visibility to pilots in the air and
on the ground and providing a centralized location for
other elements of the system.
5.1.2_The Wind Direction Indicator._A wind cone,
wind sock, or wind tee installed near the operational
runway to indicate wind direction. The large end of
the wind cone/wind sock points into the wind as does
the large end (cross bar) of the wind tee. In lieu of a
tetrahedron and where a wind sock or wind cone is
collocated with a wind tee, the wind tee may be
manually aligned with the runway in use to indicate
landing direction. These signaling devices may be
located in the center of the segmented circle and may
be lighted for night use. Pilots are cautioned against
using a tetrahedron to indicate wind direction.
5.1.3_The Landing Direction Indicator._A tetrahedron is installed when conditions at the airport
warrant its use. It may be used to indicate the direction
of landings and takeoffs. A tetrahedron may be
located at the center of a segmented circle and may be
lighted for night operations. The small end of the
tetrahedron points in the direction of landing. Pilots
are cautioned against using a tetrahedron for any
purpose other than as an indicator of landing
direction. Further, pilots should use extreme caution
when making runway selection by use of a
tetrahedron in very light or calm wind conditions as
the tetrahedron may not be aligned with the
designated calm-wind runway. At airports with
control towers, the tetrahedron should only be
referenced when the control tower is not in operation.
Tower instructions supersede tetrahedron indications.
5.1.4_Landing strip indicators._Installed in pairs
as shown in the segmented circle diagram, and used
to show the alignment of landing strips.
5.1.5_Traffic pattern indicators._Arranged in pairs
in conjunction with landing strip indicators and used
to indicate the direction of turns when there is a
variation from the normal left traffic pattern. If there
is no segmented circle installed at the airport, traffic
pattern indicators may be installed on or near the end
of the runway.
5.2_Preparatory to landing at an airport without a
control tower, or when the control tower is not in
operation, the pilot should concern himself with the
indicator for the approach end of the runway to be
used. When approaching for landing, all turns must
be made to the left unless a traffic pattern indicator
indicates that turns should be made to the right. If the
pilot will mentally enlarge the indicator for the
runway to be used, the base and final approach legs
of the traffic pattern to be flown immediately become
apparent. Similar treatment of the indicator at the
departure end of the runway will clearly indicate the
direction of turn after takeoff.
5.3_When two or more aircraft are approaching an
airport for the purpose of landing, the pilot of the
aircraft at the lower altitude has the right-of-way
over the pilot of the aircraft at the higher altitude.
However, the pilot operating at the lower altitude
should not take advantage of another aircraft, which
is on final approach to land, by cutting in front of, or
overtaking that aircraft.
6. Ground Control Frequencies
6.1_Pilots of departing aircraft should communicate
with the control tower on the appropriate ground
control/clearance delivery frequency prior to starting
engines to receive engine start time, taxi and/or
clearance information. Unless otherwise advised by
the tower, remain on that frequency during taxiing
and runup, then change to local control frequency
when ready to request takeoff clearance.
NOTE-
Pilots are encouraged to monitor the local tower frequency
as soon as practical consistent with other ATC
requirements.
6.2_The tower controller will consider that pilots of
turbine-powered aircraft are ready for takeoff when
they reach the runway or warm-up block unless
advised otherwise.
6.3_The majority of ground control frequencies are in
the 121.6-121.9 MHz bandwidth. Ground control
frequencies are provided to eliminate frequency
congestion on the tower (local control) frequency and
are limited to communications between the tower and
aircraft on the ground and between the tower and
utility vehicles on the airport, provide a clear VHF
channel for arriving and departing aircraft. They are
AIP ENR 1.1-7
United States of America 15 MAR 07
Federal Aviation Administration Nineteenth Edition
used for issuance of taxi information, clearances, and
other necessary contacts between the tower and
aircraft or other vehicles operated on the airport. A
pilot who has just landed should not change from the
tower frequency to the ground control frequency until
directed to do so by the controller. Normally, only one
ground control frequency is assigned at an airport;
however, at locations where the amount of traffic so
warrants, a second ground control frequency and/or
another frequency designated as a clearance delivery
frequency, may be assigned. |
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