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A318/A319/A320/A321
NONDESTRUCTIVE TESTING MANUAL
PART 1 - GENERAL
ALI NO. 55-20-07
EFFECTIVITY: A318,A319,A320,A321 55-20-07 Page 101
Aug 01/07
Printed in Germany
1. DESCRIPTION
A. This procedure covers the inspection of the sandwich structure of the elevator
panels using thermographic technique for trapped water inside the honeycomb
core cells.
B. This inspection is to be done from the outside after artificial thermal
excitation of the elevator.
C. Three alternative thermal excitation methods can be applied:
- METHOD A: Heating the whole elevator inside an oven.
- METHOD B: Heating the elevator with blankets.
- METHOD C: Cooling the whole elevator inside a refrigerator.
D. Inspection must be performed away from any type of hot or cold source and in
ambient temperature within the range of 10 to 30º C (50 to 86º F).
E. In order to perform this inspection two people are recommended, one NDT
inspector and one assistant. The assistant will scan the inspection areas and
the inspector will mark out the trapped water areas on the skin.
NOTE: AIRBUS gives a specific thermographic course for this inspection. AIRBUS
recommends you do this training course before you do this inspection.
F. For those thermographic trapped water indications partially hidden by
lightning strips, a X-Ray inspection procedure is provided. This X-Ray
inspection is an alternative procedure to remove the lightning strip and
repeat the thermographic inspection.
2. PREFERRED INSPECTION
A. 55-20-07, PART 10 - THERMOGRAPHIC, Page Block 1001
3. ALTERNATIVE INSPECTION
A. 55-20-07, PART 2 - X-Ray, Page Block 201, (only for lightning strip areas)
A318/A319/A320/A321
NONDESTRUCTIVE TESTING MANUAL
PART 2 – X-RAY
ALI NO. 55-20-07
EFFECTIVITY: A318,A319,A320,A321 55-20-07 Page 201
Aug 01/07
Printed in Germany
1. COMPONENT OR AREA TO BE INSPECTED (Refer to Figure 201)
A. This procedure can be applied In-Service, to determine the extent of trapped
water behind a lightning strip, in cases where the full extent of a
thermographic finding may be partially hidden by the strip.
B. The X-ray procedure will be alternative to remove the lightning strip and
repeat the thermographic inspection.
2. DESCRIPTION OF POSSIBLE DAMAGE
A. Water in honeycomb cells located under lightning strips.
3. RELATED DOCUMENTS
A. NTM, Chapter 51-10-10, X-Ray inspection to detect water in honeycomb sandwich
parts
B. NTM, Chapter 51-20-00, Page Block 201, X-Ray - General
C. NTM, Chapter 51-21-01, Page Block 201, X-Ray Equipment
4. EQUIPMENT AND MATERIALS
A. The equipment used in the development of this procedure was as follows:
(1) X-Ray Unit : MG 161L from PHILIPS, tube being MCN166, kV range
15-160 kV, constant potential, Standard spot size
1.5 mm x 1.5 mm (0.059 in. x 0.059 in.)
(2) X-Ray Film : Class 2, Type D7 from AGFA
(GE INSPECTION TECHNOLOGIES)
NOTE: Select film size related to the area to be
covered. In order to get well focused images
it is recommended to use 10 in. x 12 in.
films and overlap if needed.
NOTE: Any comparable X-Ray equipment may be used provided that it is capable of
meeting the requirements of this procedure.
5. PREPARATION FOR INSPECTION
WARNING: OBSERVE STANDARD WARNINGS AND CAUTIONS BEFORE WORKING ON, OR NEAR
HORIZONTAL STABILIZER
A. Make sure that the surface of the inspection area is clean and smooth.
B. Check the inspection area for any visible damage or discontinuities.
A318/A319/A320/A321
NONDESTRUCTIVE TESTING MANUAL
PART 2 – X-RAY
ALI NO. 55-20-07
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Printed in Germany
C. Place the X-ray films to mark out their limits on the skin.
NOTE: Overlap films if needed.
D. Mark out the center point of each film location for further X-ray source
positioning.
6. INSPECTION PROCEDURE
WARNING: NATIONAL SAFETY PRECAUTIONS RELATED TO RADIATION MUST BE FOLLOWED DURING
THIS X-RAY INSPECTION PROCEDURE.
A. Place one X-ray film in its correct position.
B. Position the X-ray tube perpendicular to the upper panel and centered to the
film to be shot. Refer to Figure 202 for typical examples of X-ray tube and
film positioning.
C. When inspecting an area with two or more films, each film must be placed and
shot in sequence.
NOTE: Films shall overlap to ensure that the whole region of interest is
radiographed. Use lead tapes or high density markers to help film
evaluation.
D. Radiographic pictures shall be taken following the parameters shown in
Table 201.
E. Adjust the mAs to achieve a film density between 1.5 and 2.5.
F. Repeat procedure for all areas requiring inspection.
A318/A319/A320/A321
NONDESTRUCTIVE TESTING MANUAL
PART 2 – X-RAY
ALI NO. 55-20-07
Area to be inspected
Figure 201
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Printed in Germany
A318/A319/A320/A321
NONDESTRUCTIVE TESTING MANUAL
PART 2 – X-RAY
ALI NO. 55-20-07
Preparation for inspection
Figure 202
EFFECTIVITY: A318,A319,A320,A321 55-20-07 Page 204
Aug 01/07
Printed in Germany
A318/A319/A320/A321
NONDESTRUCTIVE TESTING MANUAL
PART 2 – X-RAY
ALI NO. 55-20-07
EFFECTIVITY: A318,A319,A320,A321 55-20-07 Page 205
Aug 01/07
Printed in Germany
7. EXPOSURE DATA
SETTINGS FILMS
Exposure
Number
kV mAs SFD CLASS SIZE
ALL 50 2800 1500 mm
(59 in.)
2
Type D7
As required
for area
coverage
X-ray parameters for the inspection area
Table 201
CAUTION: PARAMETERS ABOVE ARE FOR THE EQUIPMENT DESCRIBED IN PARAGRAPH 4 AND FOR
A DEVELOPMENT TEMPERATURE OF 33° C (91.4° F). WHEN ADJUSTING OTHER UNIT
OR CONDITIONS DO NOT EXCEED THE GIVEN KV.
NOTE: The mAs quoted is for a minimum SFD of 1500 mm (59 in.). Longer SFD may be
used to inspect a larger area in one shot. In this case the mAs value must
be adjusted in accordance with the inverse square law. (Refer to Chapter
51-20-00, Page Block 201).
8. ACCEPTANCE CRITERIA
CAUTION: WHITE OR LIGHT GREY INDICATIONS MAY ALSO BE CAUSED BY CORE FILLER OR
ADHESIVE. THIS INDICATIONS MUST NOT BE CONFUSED WITH WATER TRAPPED
INDICATIONS. (REFER TO FIGURE 204)
A. Water filled honeycomb cells will show as white or light grey areas on the
film, conforming to the shape of the honeycomb cells. Refer to examples given
on Figures 203 to 205.
NOTE: To determine white or light grey indications as caused by water and core
filler or adhesive, a cell by cell evaluation must be performed.
Usually, cells containing water are all homogeneous, while cells
containing core filler or adhesive have a small spot produced by the
presence of bubbles.
B. Mark the position and size of any water indication located under the lightning
strip.
C. Complete the shape and size of the thermographic indications with the ones
obtained by X-ray. (Refer to Figure 205)
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NONDESTRUCTIVE TESTING MANUAL
PART 2 – X-RAY
ALI NO. 55-20-07
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Printed in Germany
9. FINAL NDT REQUIREMENTS
A. Remove all test equipment.
A318/A319/A320/A321
NONDESTRUCTIVE TESTING MANUAL
PART 2 – X-RAY
ALI NO. 55-20-07
Example of radiograph image where the beam of radiation
is not perpendicular to the honeycomb cell orientation
Figure 203
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A318/A319/A320/A321
NONDESTRUCTIVE TESTING MANUAL
PART 2 – X-RAY
ALI NO. 55-20-07
Example of radiograph image of an area with core filler
Figure 204
EFFECTIVITY: A318,A319,A320,A321 55-20-07 Page 208
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Printed in Germany
A318/A319/A320/A321
NONDESTRUCTIVE TESTING MANUAL
PART 2 – X-RAY
ALI NO. 55-20-07
Example of Thermographic and X-Ray indication marking
Figure 205
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Aug 01/07
Printed in Germany
A318/A319/A320/A321
NONDESTRUCTIVE TESTING MANUAL
PART 10 - THERMOGRAPHIC
ALI NO. 55-20-07
EFFECTIVITY: A318,A319,A320,A321 55-20-07 Page 1001
May 01/07
Printed in Germany
1. COMPONENT OR AREA TO BE INSPECTED (Refer to Figure 1001)
A. The honeycomb structure of both the upper and lower elevator panels, LH/RH.
2. DESCRIPTION OF POSSIBLE DAMAGE
A. Honeycomb cells containing more than 10% of trapped water in areas equal to or
more than 120 mm² (0.186 in²) in size.
3. RELATED DOCUMENTS
A. NTM, Chapter 51-10-03, Page Block 501, Resonance Frequency, Inspection of CFRP
and GFRP. Composite Components - Honeycomb Sandwich Parts
B. NTM, Chapter 51-10-90, Page Block 1001, Thermography - General
C. AMM, Chapter 27-34-41, Page Block 401, Elevator - Removal/Installation
4. EQUIPMENT AND MATERIALS
A. Any combination of thermographic equipment and systems for thermal excitation
may be used provided that it satisfies the requirements of this procedure and
they give similar resolution.
(1) Minimum thermocamera
requirements : Real time image. Automatic adjustment of level and
span (contrast and brightness)
Spatial resolution < 1.5 mrad
Thermal resolution < 0.2º C near ambient
temperature
Focus range lower value < 500 mm (20 in)
Temperature range including -18º C to 100º C
(-0.4º F to 212º F)
(2) Minimum monitor
requirements : 3.5 in. minimum dimensions, portable
(3) Minimum thermal
excitation systems
requirements : METHOD A
An industrial oven of the correct dimensions to
fully heat an elevator, that can give 100º C
(212º F) with temperature controller (minimum of 6
thermocouples are recommended).
A318/A319/A320/A321
NONDESTRUCTIVE TESTING MANUAL
PART 10 - THERMOGRAPHIC
ALI NO. 55-20-07
EFFECTIVITY: A318,A319,A320,A321 55-20-07 Page 1002
Nov 01/07
Printed in Germany
METHOD B
A heating blanket kit of the correct dimensions
(Refer to Figure 1002) with temperature controller
that can supply the temperature slope shown in
Figure 1003.
METHOD C
An industrial refrigerator of the correct
dimensions to receive an elevator and able to keep
an internal temperature of -5º C (23º F) or less
B. The equipment used in the development of this procedure was as follows:
(1) Instrument : Portable ThermaCAM PM545 with 24º Lens from FLIR
SYSTEMS and the following technical features:
Thermal resolution of 0.1º C (0.18º F) at 30º C
(86º F)
Spatial resolution 1.3 mrad
Focus range lower value 500 mm (20 in.)
Temperature range of -20º C to 120º C (-4º F to
248º F)
Field of view (HxV) 24† x 18†
Spectral band 7.5 to 13 nm
(2) Portable Monitor : FD-2560 from FLIR SYSTEMS
(3) Elongation Cable : Greater than 2000 mm (78.74 in.)
NOTE: ThermaCAM P10 and remote control with monitor were also used in the
development of this procedure.
NOTE: AIRBUS identifies each proper combination of thermocamera, monitor,
remote control and elongation cable as tool kit 551024T01.
A318/A319/A320/A321
NONDESTRUCTIVE TESTING MANUAL
PART 10 - THERMOGRAPHIC
ALI NO. 55-20-07
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Nov 01/07
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(4) Heating blankets
for METHOD B : 220 volts kit GMIDS32-HK010-2 with integrated
thermocouples from GMI
(5) Temperature
controller
for METHOD B : GMIDS34CK010-2 from GMI
(6) 110/220 volts
transformer
for METHOD B : GMIDS34TK010-2 from GMI
NOTE: CHROMALOX and BRISKHEAT vendors have been validated by Airbus as
alternative manufacturers for METHOD B kit. Complete kits are sold
under following P/Ns:
CHROMALOX kit for METHOD B:
- Temperature controller (220 volts): N38422
- A320 Heating Blankets: N38423
- 110/220 volts transformer (if 110 volts supply): N38424
BRISKHEAT kit for METHOD B:
- Temperature controller (110/220 volts): NDTCONTROLLER
- A320 Heating Blankets: A320BLANKETKIT
(7) Auxiliary Equipment : Timer with alarm
Elevator support tooling (for methods A and C only)
(Refer to Figure 1004)
A318/A319/A320/A321
NONDESTRUCTIVE TESTING MANUAL
PART 10 - THERMOGRAPHIC
ALI NO. 55-20-07
Area to be Inspected
Figure 1001
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A318/A319/A320/A321
NONDESTRUCTIVE TESTING MANUAL
PART 10 - THERMOGRAPHIC
ALI NO. 55-20-07
Dimensions of the heating area and position
of the blankets (thermal excitation METHOD B)
Figure 1002
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A318/A319/A320/A321
NONDESTRUCTIVE TESTING MANUAL
PART 10 - THERMOGRAPHIC
ALI NO. 55-20-07
Controller temperature slope
Figure 1003
EFFECTIVITY: A318,A319,A320,A321 55-20-07 Page 1008
Nov 01/07
Printed in Germany
A318/A319/A320/A321
NONDESTRUCTIVE TESTING MANUAL
PART 10 - THERMOGRAPHIC
ALI NO. 55-20-07
Elevator Support Tool – For Procedure A and Procedure C only
(Local Manufacture)
Figure 1004
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Nov 01/07
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A318/A319/A320/A321
NONDESTRUCTIVE TESTING MANUAL
PART 10 - THERMOGRAPHIC
ALI NO. 55-20-07
EFFECTIVITY: A318,A319,A320,A321 55-20-07 Page 1010
Nov 01/07
Printed in Germany
5. PREPARATION FOR INSPECTION
WARNING: OBEY STANDARD WARNINGS BEFORE WORKING ON, OR NEAR, THE HORIZONTAL
STABILIZER WHEN THE ELEVATOR IS ON THE A/C.
CAUTION: THE AMBIENT TEMPERATURE MUST BE KEPT TO WITHIN THE RANGE OF 10º C
(50º F) TO 30º C (86º F). IT IS RECOMMENDED TO PERFORM THE INSPECTION
INSIDE AN HANGAR. THERE MUST BE NO HOT OR COLD AIR FLOWS AROUND THE
INSPECTION AREA.
A. Make sure that the surface of elevator is clean and smooth.
B. Make sure that all hand holes of the front spar are covered.
C. Check all the inspection areas for visible damage, discontinuity, signs of
repairs or any condition which could affect the inspection.
NOTE: A visual inspection parallel to the elevator surface (upper and lower)
to compare the differences in surface reflection can help to detect
repairs or discontinuities.
D. Check and record the ambient temperature.
E. For METHOD A only (oven):
(1) Make sure that the Elevator is removed from the Horizontal Stabilizer
(Refer to AMM, Chapter 27-34-41, Page Block 401).
(2) Use a support tool to put the elevator in a vertical position, with
trailing edge down, so that the two panels are positioned at the same
angle to the floor (Refer to Figure 1004).
(3) Put the elevator inside the oven.
CAUTION: MAKE SURE THE THERMOCOUPLES HAVE GOOD CONTACT WITH THE ELEVATOR
PANEL.
(4) Fix 3 thermocouples to each elevator panel with adhesive tape such that
they are uniformly distributed and approximately in the middle of panel
areas (Refer to Figure 1005).
(5) Gradually heat the elevator in the oven. 4 of the 6 thermocouples must be
at 40º C (72º F) more than the ambient temperature in less than 10
minutes.
A318/A319/A320/A321
NONDESTRUCTIVE TESTING MANUAL
PART 10 - THERMOGRAPHIC
ALI NO. 55-20-07
Thermocouple Positions
(Thermal excitation METHOD A)
Figure 1005
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A318/A319/A320/A321
NONDESTRUCTIVE TESTING MANUAL
PART 10 - THERMOGRAPHIC
ALI NO. 55-20-07
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Printed in Germany
(6) Hold this temperature value stable (+2º C, 0º C / +3.6º F, 0º F) in the
elevator for at least 30 minutes. The total heating period should be 40
minutes minimum.
NOTE: Where thermocouple control is not possible, oven temperature, with
the elevator inside, shall be maintained at 40º C (72º F) above
ambient temperature for minimum 40 minutes.
(7) After heating, move the elevator out of the oven to a place away from
cold/hot airflows.
F. For METHOD B only (blankets):
(1) Make sure that the inspection is done away from cold/hot airflows.
CAUTION: DO NOT OVERLAP HEATING BLANKETS AND POSITION CAREFULLY TO PREVENT
DAMAGE THERMOCOUPLES, CONECTORS, ETC.
(2) Put the three blankets over the upper skin.
(3) Make marks to show the limits and reference number of each inspection area
on the elevator skin.(Refer to Figure 1002).
(4) Make sure there is good contact between the heating blankets and the skin.
CAUTION: DO NOT PLACE ANY MATERIAL OVER THE THERMOCOUPLE AREA OF THE BLANKETS.
(5) Hold the blankets with anti-slip clamps to hold the heating blankets in
place.
(6) Put insulation blankets on the blankets to be heated.
NOTE: It is mandatory to heat areas 2 and 3 at the same time. Areas 2 and
3 can be heated while area 1 is being inspected, or vice versa.
(Refer to Figure 1006).
(7) Do a check and record that ambient temperature is between 10ºC (50ºF) and
30ºC (86ºF).
(8) Ground the temperature controller to the elevator and refer to the
manufacturer instructions for operation.
A318/A319/A320/A321
NONDESTRUCTIVE TESTING MANUAL
PART 10 - THERMOGRAPHIC
ALI NO. 55-20-07
Preparation–Correct / Incorrect blanket supply
Figure 1006
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A318/A319/A320/A321
NONDESTRUCTIVE TESTING MANUAL
PART 10 - THERMOGRAPHIC
ALI NO. 55-20-07
EFFECTIVITY: A318,A319,A320,A321 55-20-07 Page 1014
Nov 01/07
Printed in Germany
(7) Gradually heat the inspection area/s for a minimum of 32 minutes. Make
sure that the inspection area is 85 ‡3† C (185 ‡5.4† F) during a minimum of
the last 13 minutes of the heating period.
NOTE: Heating blankets of the kit have an average increasing temperature
slope of 4† C/min (7.2 †F/min) so you need between 14 and 19 minutes
to reach 85† C (185† F) as corresponds to an ambient temperature
between 30† C (86† F) and 10† C (50† F).
NOTE: At slow or fast increasing temperature rate, keep 85 ‡3† C
(185 ‡5.4† F) during the last 13 minutes or more of the heating
period.
(8) Remove blankets from the heated area/s.
G. For METHOD C only (refrigerator):
(1) Make sure that the Elevator is removed from the Horizontal Stabilizer
(Refer to AMM, Chapter 27-34-41, Page Block 401).
(2) Use a support tool to put the elevator in a vertical position, with
trailing edge down, so that the two panels are positioned at the same
angle to the floor (Refer to Figure 1004).
(3) Make sure that the ambient temperature inside the refrigerator is
maintained stable at -5º C (23º F) or below.
(4) Put the elevator inside the refrigerator.
(5) Keep the elevator inside the refrigerator during a minimum of 2 hours.
(6) Move the elevator out of the refrigerator to a place away from cold/hot
airflow.
6. INSTRUMENT CALIBRATION
CAUTION: IT IS EXTREMELY IMPORTANT NOT TO TOUCH THE INSPECTION AREA DURING THE
CALIBRATION, INSPECTION OR MARKING PROCESSES.
A. Operate the instrument in accordance with the manufacturer's instructions.
B. Set the power to on and wait approximately 30 seconds.
C. Select Image menu and make sure that temperature range -20† to 120† C (-4† F
to 248† F) is selected.
A318/A319/A320/A321
NONDESTRUCTIVE TESTING MANUAL
PART 10 - THERMOGRAPHIC
ALI NO. 55-20-07
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D. Select in Set up - Image menu the following parameters:
Auto Adjust : Level and Span
Continuous adjust. : None
Colour scale : METHOD A and METHOD B - Grey inverted
METHOD C - Grey
E. Adjust the monitor controls such that images are shown same shape, grey color,
contrast and brightness on both the thermocamera and monitor screens.
NOTE: No adjustment is needed when the remote control monitor is used.
F. Calibrate the thermocamera as follows:
- For methods A and C during the waiting time
- For method B immediately before the end of the heating period on the lower
panel of the area of inspection
- Also, do this calibration again immediately before the start of the
thermographic inspection.
(1) Point the camera, as perpendicular as possible, to a part of the
inspection area so that:
- Only inspection area is in the viewfinder, so no other items (floor,
walls, etc) are seen in the viewer during calibration
- The trailing edge aligns with the bottom edge of the viewer (Refer to
Figure 1007).
(2) Press button “A” (auto-adjust) to pre-adjust the camera.
(3) Adjust the focus to clearly define any discontinuity in the area
(fasteners, hoisting point, rib, or other discontinuity).
(4) Do the automatic contrast and brightness calibration by pressing
button ”A”.
(5) If necessary, move the camera away to a distance between 1000 mm and
2000 mm (39.37 in. and 78.74 in.), from the inspection area and re-focus
the thermocamera.
A318/A319/A320/A321
NONDESTRUCTIVE TESTING MANUAL
PART 10 - THERMOGRAPHIC
ALI NO. 55-20-07
Calibration-Correct / Incorrect area in the viewer
Figure 1007
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A318/A319/A320/A321
NONDESTRUCTIVE TESTING MANUAL
PART 10 - THERMOGRAPHIC
ALI NO. 55-20-07
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7. INSPECTION PROCEDURE
CAUTION: PERFORMANCE OF THE INSPECTION CAN ONLY BE ENSURED IF ALL CALIBRATION AND
HEATING/COOLING PARAMETERS ARE CAREFULLY FOLLOWED.
CAUTION: IT IS EXTREMELY IMPORTANT NOT TO TOUCH INSPECTION AREA DURING THE
CALIBRATION, INSPECTION OR MARKING PROCESSES.
CAUTION: IT IS ESSENTIAL THAT THE INSPECTOR IS MADE AWARE OF THE ELEVATOR
STRUCTURE LAYOUT BEFORE PERFORMING THIS INSPECTION.
NOTE: Two people are necessary to perform this procedure: one inspector and one
assistant. The assistant will scan the inspection areas and the inspector
will mark out the panel trapped water areas.
A. Calibrate the equipment in accordance with paragraph 6.
B. Repeat paragraph 6.F. adjustment just before starting the inspection.
C. For METHOD A only (oven)
CAUTION: START THE THERMOGRAPHIC INSPECTION 8 MINUTES AFTER THE END OF THE
THERMAL EXCITATION (HEAT/COLD) APPLICATION.
CAUTION: CHECK THAT GREY INVERTED POLARITY (HOT/BLACK) HAS BEEN SELECTED IN
THE COLOUR SCALE BY LOOKING AT HOISTING POINTS, FASTENERS OR RIB IN
BLACK COLOUR.
(1) Do the inspection by scanning between 1000 mm and 2000 mm (39.37 in. to
78.74 in.) as perpendicular as possible to the skin (Refer to Figure
1008).
(2) Focus the camera during the inspection period as necessary.
(3) Auto-adjust the camera at least every 2-3 minutes of continuous inspection
following the requirements in paragraph 6.F.
NOTE: In case of findings auto-adjust the camera on the indication when
needed to facilitate indication bordering. Then direct the camera to
T.E. for camera calibration following requirements in paragraph 6.F.
(4) You have only 30 minutes to do the inspection of the elevator. If you need
more time to complete the inspection, repeat the steps from paragraph 5.E.
(5) You must do an inspection of the two elevator panels.
A318/A319/A320/A321
NONDESTRUCTIVE TESTING MANUAL
PART 10 - THERMOGRAPHIC
ALI NO. 55-20-07
Inspection Method
Figure 1008
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D. For METHOD B only (blankets)
CAUTION: CHECK THAT GREY INVERTED POLARITY (HOT/BLACK) HAS BEEN SELECTED IN
THE COLOUR SCALE BY LOOKING AT HOISTING POINTS, FASTENERS OR RIB IN
BLACK COLOUR.
CAUTION: START THE THERMOGRAPHIC INSPECTION OF THE LOWER PANEL INMEDIATELY
AFTER THE END OF THE HEAT APPLICATION. THERE IS NO WAITING TIME
NECESSARY FOR THIS PROCEDURE.
CAUTION: THIS PROCEDURE PERMITS THE INSPECTION OF THE UPPER AND LOWER PANELS
AFTER HEATING ONLY THROUGH THE UPPER PANEL. (REFER TO FIGURE 1009 FOR
INSPECTION SEQUENCE).
(1) This inspection is applicable to each of the inspection areas (1 to 3)
after instructions in paragraph 5.F. and 6 are obeyed.
(2) Do a scan of the lower panel inspection area from the T.E. forwards as
shown in Figure 1008, between 1000 mm and 2000 mm (39.37 in. to 78.74 in.)
as perpendicular as possible to the skin. You must overlap scan paths one
after the other. When 2 inspection areas are heated at the same time it is
recommended to do an inspection in sequence as shown in Figure 1008.
(3) Focus the camera during the inspection as necessary.
(4) Auto-adjust the camera before the start each scanning path, include part
of the rib in the viewer to not exaggerate the contrast of the inspection.
NOTE: Auto-adjust the camera over the indication to facilitate indication
bordering. Then come back to the previous auto-adjustment point at
the beginning of the corresponding scanning path, auto-adjust the
camera and continue the inspection.
(5) Do an inspection the lower panel area/s during 10 minutes maximum.
(6) Start the inspection of the upper panel area/s 10 minutes after the end of
heat application.
(7) Scan the upper panel inspection area from the T.E. forwards as shown in
Figure 1008, between 1000 mm and 2000 mm (39.37 in. to 78.74 in.) as
perpendicular as possible to the skin. You must overlap scan paths one
after the other. When 2 inspection areas are heated at the same time it is
recommended to do an inspection in sequence as shown in Figure 1008.
(8) Focus the camera during the inspection as necessary.
A318/A319/A320/A321
NONDESTRUCTIVE TESTING MANUAL
PART 10 - THERMOGRAPHIC
ALI NO. 55-20-07
EFFECTIVITY: A318,A319,A320,A321 55-20-07 Page 1020
Nov 01/07
Printed in Germany
(9) Auto-adjust the camera before the start each scanning path, include part
of the rib in the viewer to not exaggerate the contrast of the inspection.
NOTE: Auto-adjust the camera over the indication to facilitate indication
bordering. Them come back to the previous auto-adjustment point at
the beginning of the corresponding scanning path, auto-adjust the
camera and continue the inspection.
(10) Do an inspection of the upper panel areas during 10 minutes maximum.
(11) Total time for the inspection must not be more than 20 minutes. Repeat
from paragraph 5.F. if necessary to complete the inspection.
NOTE: Inspection areas 2 and 3 must always be heated together although
just one of these areas is to be re-inspected.
E. For METHOD C only (refrigerator)
CAUTION: START THE THERMOGRAPHIC INSPECTION 8 MINUTES AFTER THE END OF COLD
APPLICATION.
CAUTION: CHECK THAT GREY POLARITY (COLD/BLACK) HAS BEEN SELECTED IN THE COLOUR
SCALE BY LOOKING AT HOISTING POINTS, FASTENERS OR RIB IN BLACK
COLOUR.
(1) Clean the condensation from the skin with a clean tissue. Do not touch the
elevator skin with your hands.
(2) Do the inspection by scanning between 1000 mm and 2000 mm (39.37 in. to
78.74 in.) as perpendicular as possible to the skin (Refer to Figure
1008).
(3) Focus the camera during the inspection as necessary.
(4) Auto-adjust the camera every 2-3 minutes minimum of continuous inspection
following the requirements in paragraph 6.F.
NOTE: In case of findings auto-adjust the camera on the indication when
necessary to help indication bordering. Then point the camera to
T.E. for camera calibration obeying paragraph 6.F.
(5) You have only 20 minutes to inspect the elevator. If you need more time to
complete the inspection, repeat the steps from paragraph 5.G.
(6) You must do an inspection of the two elevator panels.
A318/A319/A320/A321
NONDESTRUCTIVE TESTING MANUAL
PART 10 - THERMOGRAPHIC
ALI NO. 55-20-07
Inspection sequence for METHOD B
Figure 1009
EFFECTIVITY: A318,A319,A320,A321 55-20-07 Page 1021
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A318/A319/A320/A321
NONDESTRUCTIVE TESTING MANUAL
PART 10 - THERMOGRAPHIC
ALI NO. 55-20-07
EFFECTIVITY: A318,A319,A320,A321 55-20-07 Page 1022
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Printed in Germany
F. For all METHODS
(1) Trapped water inside the honeycomb core will be identified by darker
indications when compared with the adjacent area. Refer to Figure 1010 to
identify different thermographic indications.
CAUTION: SPECIAL CARE MUST BE TAKEN WITH INDICATIONS THAT MAY APPEAR ON THE
SCREEN WHICH ARE CAUSED BY:
- SURFACE REFLECTIONS OF HEAT SOURCES SUCH AS LIGHTNING, AIR
CONDITIONING, ETC.
- HONEYCOMB FILLER AROUND THE FASTENERS (25 mm (1 in.) dia.)
- CORE SPLICES (MAINLY IN THE RIB END)
- GEOMETRIC INDICATIONS (REPAIRS)
(2) In case of findings that may be partially occluded by a lightning strip:
- Do an X-Ray inspection of this area or
- Remove the lightning strip and do the thermographic inspection again to
find full damage size.
(3) All thermographic indications with a regular shape or located at the end
of a rib, shall be checked by a tap test, refer to Chapter 51-10-03 Page
Block 501 to avoid misinterpretation of structural changes such as
repairs, core splices, etc.
(4) To make marks on areas identified as trapped water:
- Put the portable monitor near the inspection area
- Refer to the indication on the screen
- The inspector will make marks on the edge of the darker areas to
identify trapped water while the assistant keeps the image.
8. ACCEPTANCE CRITERIA
A. All dark indications which cannot be identified as geometric changes such as
ribs, hoisting points, fasteners, core splice, honeycomb filler, etc., surface
irregularities, foreign materials or heat/cold source reflections on the
surface must be considered to be water indications.
B. Make a full-scale map of the findings on a plastic foil, including distance or
references to the elevator front spar rivet rows and other geometrical
references such as ribs, lightning protection plates, fastener numbering, etc.
to help the elevator repairs.
A318/A319/A320/A321
NONDESTRUCTIVE TESTING MANUAL
PART 10 - THERMOGRAPHIC
ALI NO. 55-20-07
Example of Thermographic Indications in zones with different discontinuities
such as hoisting point, ribs and lightning protection plate
Figure 1010
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A318/A319/A320/A321
NONDESTRUCTIVE TESTING MANUAL
PART 10 - THERMOGRAPHIC
ALI NO. 55-20-07
EFFECTIVITY: A318,A319,A320,A321 55-20-07 Page 1024
Nov 01/07
Printed in Germany
C. Include in the full scale map information such as:
- Elevator serial number
- LH/RH elevator
- Upper/lower panel
- Inboard/fwd directions
9. FINAL NDT REQUIREMENTS
None

netwang

thank you very much

夜行巫师

翻译了吗？参考一下，谢谢，虽然用的时候还是看最新版的原文

xheleon

非常感谢楼主发布！！！！

f214216709

无损检测的教材？

v2500

下来学习学习,多谢了.

2119629

非常需要这个，谢谢啦

y652325

好好好啊好哦

6626

航后工作单经典讲解