4. Procedure
_________
Subtask 72-00-00-210-070
A. Vane scheduling errors can occur if the lever arms which control the compressor stator vanes are damaged or disassembled.
(1) When the vane scheduling errors are greater than 4 degrees, you must replace all HPC blades on one stage forward of and 2 stages aft of the stage which has off-schedule vanes.
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________ Subtask 72-00-00-410-076
A. Close Access
(1) Make sure that the work area is clean and clear of tool(s) and other items.
(2) Close the thrust reverser doors (Ref. TASK 78-36-00-410-040): FOR 1000EM1 451AL, 452AR FOR 1000EM2 461AL, 462AR
Subtask 72-00-00-440-062
B. Make the thrust reverser serviceable (Ref. TASK 78-30-00-081-041). Subtask 72-00-00-410-081
C. Close Access
(1) Close the fan cowl doors (Ref. TASK 71-13-00-410-040):
FOR 1000EM1
437AL, 438AR
FOR 1000EM2
447AL, 448AR
(2) Remove the warning notice(s).
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TASK 72-00-00-200-025
Over-Serviceable-Limit Extensions
1. Reason for the Job
__________________
This TASK is applicable to NON /P engines. It can occur that specific defects do not agree with the "Maximum Serviceable Limits", and that the maintenance facilities, at a given location, are not sufficient to do the necessary corrective actions. In these circumstances, limit extensions will permit to send the engine where correction is possible, or to schedule the necessary maintenance in the extension period.
NOTE : The limit extensions are one-time extensions only. Applicable
____ hardware action is necessary at the completion of the extended serviceable period.
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific warning notice
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
71-13-00-010-040 Opening of the Fan Cowl Doors 71-13-00-410-040 Closing of the Fan Cowl Doors 72-21-00-210-006 Inspect Fan Rotor Blades Removed from the Fan Disk. 72-21-00-210-009 Inspect Fan Rotor Blades Installed on the Fan Disk 72-23-00-210-003 Detailed Inspection of Engine Inlet, Fan Blades, Fan
Outlet and Abradable Material
78-30-00-081-041 Make the Thrust Reverser Serviceable after
Maintenance
78-30-00-481-041 Make the Thrust Reverser Unserviceable for
Maintenance
78-36-00-010-040 Opening of the Thrust Reverser Doors
78-36-00-410-040 Closing of the Thrust Reverser Doors
79-00-00-210-003 Visual Inspection of the Oil System
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-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R 72-00-00-991-308 Fig. 606 R 72-00-00-991-309 Fig. 607 R 72-00-00-991-321 Fig. 608
3. Job Set-up
__________
Subtask 72-00-00-941-071
A. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a warning notice to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a warning notice to tell persons not to energize the FADEC 1(2). 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320飞机维护手册 AMM ENGINE 发动机 1(46)
