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REFERENCE DESIGNATION
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R 12-13-79-610-002 Check oil level and replenish Check Pop Out Indicator
R of EMCD (Electrical Master Chip Detector) 21-00-00-615-003 Decontamination of the Environmental Control System (ECS) when the Temperature is below 24 deg.C (Engine/s) 21-00-00-615-004 Decontamination of the Environmental Control System (ECS) when the Temperature is above 24 deg.C (Engine/s) 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the External Power
R 71-00-00-710-001 Dry Motoring Check 71-00-00-710-003 Engine Automatic Start
R 71-00-00-710-028 Engine Shutdown
R 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 72-00-00-991-322 Fig. 706
3. Job Set-up
__________
Subtask 72-00-00-941-101
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.
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(b) Put a warning notice to tell persons not to energize the FADEC 1(2).
Subtask 72-00-00-010-138
B. Open the fan cowl doors (Ref. TASK 71-13-00-010-040):
FOR 1000EM1
437AL, 438AR
FOR 1000EM2
447AL, 448AR
4. Procedure
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Subtask 72-00-00-110-079
A. Preparation of the Engine for Washing
CAUTION : CORROSION PREVENTIVE ADDITIVE SHOULD BE USED. HOWEVER, IF NONE
_______ OF THE CORROSION PREVENTIVE PRODUCTS SPECIFIED IS AVAILABLE, THE ENGINE MUST RESUME REVENUE SERVICE OPERATION WITHIN 24 HOURS FOLLOWING THE POST WASH TEST.
(1) For engine washing requirements (Ref. TASK 72-00-00-100-008).
NOTE : The disconnection of the P25 line is only available for
____ engines equipped with the PMUX option.
(2) Disconnect PS3 line and P25 line (if installed) from the Electronic Control Unit (ECU).
(3) Plug the open tubes and ports of the ECU.
(4) Prepare an anti-freeze mixture, if necessary, as defined in engine washing requirements (Ref. TASK 72-00-00-100-008).
(5) Service the oil tank with one quart (one liter) of lube system
corrosion preventive oil (Material No. CP5067) or corrosion R preventive additive (Material No. CP5075) (Ref. TASK 12-13-79-610-R 002).
NOTE : The oil tank must be topped off up to the window mark.
____
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Subtask 72-00-00-410-137
B. Close Access
(1) Make sure that the work area is clean and clear of tool(s) and other items.
(2) Close the fan cowl doors (Ref. TASK 71-13-00-410-040): FOR 1000EM1 437AL, 438AR FOR 1000EM2 447AL, 448AR
Subtask 72-00-00-861-053
C. Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002). Subtask 72-00-00-860-052
D. Aircraft Maintenance Configuration
(1) On the overhead control and indicating panel 25VU, make sure that the ON legend of the ANTI-ICE/ENG 1(2) pushbutton switch is off.
(2) On the AIR COND panel 30VU, make sure that the OFF legend of the ENG 1(2) BLEED pushbutton switch is on.
(3) On the AIR COND panel 30VU, make sure that the OFF legends of the PACK 1 and the PACK 2 pushbutton switches are on.
(4) On the AIR COND panel 30VU, make sure that the ON legend of the APU BLEED pushbutton switch is off.
(5) On the AIR COND panel 30VU, make sure that the cross bleed valve rotary selector is on CLOSE position.
Subtask 72-00-00-110-081
E. Engine Washing CAUTION : DO NOT WASH ENGINE EXPOSED TO DRY CHEMICAL FIRE EXTINGUISHING
_______
AGENTS.
CAUTION : DO NOT WASH ENGINE UNLESS THE EGT IS BELOW 150 DEG.F (66
_______
DEG.C).
CAUTION : DO NOT WASH ENGINE AT TEMPERATURE BELOW 14 DEG.F (-10 DEG.C).
_______
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