TASK GROUP REPORT FOR SUB-CONTRACTING MAINTENANCE POWERPLANT TYPE TRAINING

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P. RETIF 1
TASK GROUP REPORT
FOR SUB-CONTRACTING OF JAR 66
MAINTENANCE POWERPLANT TYPE TRAINING
ACCORDING TO JAR 147 CHANGE 1
Working group N°4 made up of:
Michel CHRISTOPHE AIRBUS TRAINING
Olivier LOVINY AIR FRANCE FORMATION
Pascal RETIF SNECMA SERVICES TRAINING
and with the help of:
Jim BECK ROLLS ROYCE TRAINING
P. RETIF 2
POWERPLANT TYPE TRAINING
Objective of the group:
Write the specification for a powerplant course delivered under JAR 147
requirements, in terms of theoretical and practical content, duration and
examination.
Context:
To be sure that all items are covered in case of:
• a stand alone powerplant course.
• a powerplant course included in the entire aircraft course.
Definition of the powerplant
Powerplant package comprises the “Bare Engine”, “Engine Build-Up” and the
“ Nacelle systems ”.
“Aircraft/Engine interfaces” topics are part of the powerplant.
P. RETIF 3
POWERPLANT INTERFACES
A B
A1
POWERPLANT
ENG -A/C
INTERFACE BOX
POWERPLANT TYPE TRAINING
FROM B1 TO A1’
FUNCTIONAL
DESIGNATION
FROM B TO A
FUNCTIONAL
DESIGNATION
EBU COMPONENT
NOT CONTROLLED
BY FADEC
A2
EBU COMPONENT
CONTROLLED
BY FADEC
BLEED SYS.
ANTI ICE
SYS…
HYDRAULIC PUMP
IDG…
BB11
AIRFRAME
TYPE TRAINING
A11’’
FROM A2
PHYSICAL
INTERFACE
UP TO PYLON
INWHITE LEVEL III
IN BLUE LEVEL I
ENGINE COMPONENT
P. RETIF 4
POWERPLANT COURSE CONTENTS
The powerplant course is built up with:
• the respective topics treated for each system for:
• “General Familiarization Level 1”,
• “Ramp & Transit Level 2”,
• “Line & Base Level 3”.
• the powerplant type training shall be in accordance with the JAR 66
Appendix 3 for type training standards for its theoretical and practical
elements.
• the powerplant type training requires a combined analysis by the aircraft and
powerplant manufacturers together to determine the adequate training
environment for the performance of the representative maintenance tasks.
P. RETIF 5
Ramp & Transit. . . LVL 2
General Familiarization LVL 1
Overlap with airframe systems at LVL 1
PRACTICAL on Training Device / Video
Troubleshooting,
Test Procedure
& Technical Doc practice
PRACTICAL on real equipment
powerplant
Description / operation,
Component location.
Turnaround /
Access to components
Removal / Installation of LRU
De / Re-activation of MEL items
THEORETICAL
Removal / Installation of LRU
De / Re-activation of MEL items
If it requires special precautions or
techniques during the removal and
installation process
LINE & BASE systems THEORY . . . LVL 3
Line Maintenance LVL 3
POWERPLANT SPLIT
P. RETIF 6
POWERPLANT COURSE PRE-REQUISITES
The trainee should have the necessary level of knowledge:
• by having completed the JAR66 basic training or equivalent,
• or hold an academic degree in an aeronautical discipline, supplemented by
some experience on jet powered aircraft.
P. RETIF 7
POWERPLANT THEORETICAL
The program for adequate theoretical training shall cover:
• Location & purpose of components,
• description & operation of systems and sub-systems,
• understanding of troubleshooting philosophy,
• human factors.
The theoretical training element is described in
Appendix I of the specification
“Contents of powerplant type training”
P. RETIF 8
APPENDIX I
CONTENTS OF
POWERPLANT
TYPE TRAINING
Chapter
Objectives
Media
Contents
POWERPLANT ASSEMBLY
Associated ATA : 71 - 78
TRAINING OBJECTIVES :
 describes the powerplant generally and its drainage,
 describes the hazards linked to the operation with thrust,
 describes the nacelle assembly, the engine, the mounts, the A/C systems
integrated into the powerplant .
Notes:
it includes the access panels, the opening / actuating systems that are part of the
nacelle assembly,
it includes the powerplant connections to the pylon .
MEDIA :
Instructor led presentation or CBT.
CONTENTS to describe :
for the POWERPLANT GENERAL :
 the airflow,
 the hazard area,
 the wind limitations,
 the drain system,
for the NACELLE ASSEMBLY :
 the inlet cowl,
 the Fan cowls,
o the opening /closing of the cowls,
o the latches ( its rigging ),
 the Thrust Reverser cowls,
o the opening /closing of the cowls,
o the latches ( their rigging ),
 the Thrust Reverser actuation system,
o the reverse thrust control lever system and its interlocks,
o the system operation and control,
o the system components description and location,
o the de-activation before maintenance,
o the de-activation before flight,
P. RETIF 9
The program for practical training shall satisfy:
• locating the component,
• handling of powerplant sub-systems that require safe maintenance
practices,
• hands-on practice, such as the change of LRU ’s, if it requires special
precautions or techniques during the removal and installation process,
• if needed, the correct use of specific technical documentation,
• if needed, the correct use of on-board maintenance tools.
The Practical training element is described in
Appendix II of the specification
“Practical elements for powerplant type training”
POWERPLANT PRACTICAL
P. RETIF 10
APPENDIX II PRACTICAL ELEMENTS
FOR POWERPLANT TYPE TRAINING
Objective
Chapter
Classification
P. RETIF 11
COURSE DURATION
The powerplant course duration criteria shall take into account:
• the JAR 66 regulatory statement for the agreed training content developed,
• the guidelines established by the industry .
(such as EAMTC working groups)
The manufacturers shall agree on recommended common type
course content and course duration, for B1 and B2 courses.
• B1 powerplant module is 30 Hrs
• B2 powerplant module is 6 Hrs
Refer to
Appendix III “Duration of powerplant type Training”
P. RETIF 12
APPENDIX III
“DURATION OF powerplant TYPE TRAINING”
Timing B1
Timing B2
P. RETIF 13
EXAMINATION
• JAR requirements are a minimum of 2 questions per ATA chapter.
• Powerplant exam model is based on 30 questions split in line maintenance for
2/3 and General Familiarization for 1/3, spread over all powerplant ATA
chapters.
ATA Chapter Question GF Question LM Sub-Total Total
71-00-00 1 2 3 3
72-00-00 1 3 4 7
73-00-00 1 5 6 13
74-00-00 1 1 2 15
75-00-00 1 2 3 18
76-00-00 1 1 2 20
77-00-00 1 1 2 22
78-00-00 1 2 3 25
79-00-00 1 2 3 28
80-00-00 1 1 2 30

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TASK GROUP REPORT FOR SUB-CONTRACTING MAINTENANCE POWERPLANT TYPE TRAINING