2 Dry motor the engine for two minutes (Ref. TASK 71-00-00-710-
_
001).
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E E Nov 01/03 E E ECES E 3 Borescope the HPC and HPT at 6'o clock positions to inpect for
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_ ash, dust, or sand (Ref. TASK 72-31-00-290-002), (Ref. TASK 72-42-00-290-003), (Ref. TASK 72-51-00-290-004), (Ref. TASK 72-52-00-290-001) or (Ref. TASK 72-52-00-290-001), (Ref. TASK 72-52-00-290-004) or (Ref. TASK 72-52-00-290-004).
4 If loose material is still present in the engine flow path,
_ dry motor the engine for two more minutes.
5 Repeat the borescope inspection and dry motoring until all
_
material has been removed.
(b) Oil System. 1 Replace scavenge oil filter (Ref. TASK 79-21-10-920-002).
_ 2 Drain oil (Ref. TASK 12-13-79-610-003) and (Ref. TASK 12-13-
_
79-610-004).
R 3_Replace oil (Ref. TASK 12-13-79-610-002) or (Ref. TASK 12-13-79-610-002).
(c) Monitor engine operation to determine if a shift in performance parameters has occured. If parameters are abnormal, (Ref.TSM 77 PB 101).
(3) Do a one time repeat borescope inspection at an A-check or 400-800 cycles to ensure HPT nozzle vane and HPT blade integrity.
5. Close-up
________
Subtask 72-00-00-410-177
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 72-00-00-440-091
B. Make the thrust reverser serviceable (Ref. TASK 78-30-00-081-041).
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E E May 01/04 E E ECES E Subtask 72-00-00-410-178
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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 72-00-00-200-008
Inspection/Check After the Engine has Exceeded the Operational Limits
1. Reason for the Job
__________________
R If an exceedance occurs, the DMC memorizes in its memory the maximum value reached during the last flight leg for N1, N2 and EGT.
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific warning notice
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
12-13-79-610-002 Check oil level and replenish Check Pop Out Indicator
of EMCD (Electrical Master Chip Detector) 12-13-79-610-002 Check oil level and replenish (Pressure Filling) 12-13-79-610-003 Oil Tank Draining 12-13-79-610-004 Draining of the Accessory Drive Section 71-00-00-710-001 Dry Motoring Check 71-00-00-710-008 Power Assurance Check 71-13-00-010-040 Opening of the Fan Cowl Doors 71-13-00-410-040 Closing of the Fan Cowl Doors 72-00-00-100-008 Engine Washing Requirements 72-21-00-210-005 Inspection/Check of the Spinner Cone 72-21-00-290-003 Borescope Inspection of the Booster Rotor Blades,
Stages 2,3,4 and 5 through the Booster Inlet and Borescope Ports SO3 and SO5 72-23-00-210-003 Detailed Inspection of Engine Inlet, Fan Blades, Fan
Outlet and Abradable Material 72-23-00-210-004 Visual Inspection of the Fan Frame Assembly 72-31-00-290-002 Inspection of the High Pressure Compressor Rotor
Assembly 72-52-00-290-001 Borescope Inspection of the High-Pressure Turbine Blades (from the Rear)
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