R 71-13-00-010-040 Opening of the Fan Cowl Doors 71-13-00-410-040 Closing of the Fan Cowl Doors
R 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
R ESM 720000 R
3. Job Set-up
__________
Subtask 72-00-00-941-068
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).
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Subtask 72-00-00-010-075
B. Open the fan cowl doors (Ref. TASK 71-13-00-010-040):
FOR 1000EM1
437AL, 438AR
FOR 1000EM2
447AL, 448AR
Subtask 72-00-00-040-060
C. Make the thrust reverser unserviceable (Ref. TASK 78-30-00-481-041).
Subtask 72-00-00-010-080
D. Open the thrust reverser doors (Ref. TASK 78-36-00-010-040): FOR 1000EM1 451AL, 452AR FOR 1000EM2 461AL, 462AR
4. Procedure
_________
Subtask 72-00-00-280-072
A. If the crew closed the fire shut-off valve during operation of the fire extinguishers, do the "check of the hydraulic system after Operation of the engine pumps in possible starvation or cavitation condition": (Ref. TASK 29-00-00-280-006). Check of the Green or Yellow Hydraulic System after Operation in a Possible Cavitation Condition of the Engine Pump.
R
Subtask 72-00-00-280-058
R B. Fire Extinguishing Agents Applied Externally
R NOTE : Do as soon as possible to avoid soak of contamination on engine
____ R hardware.
(1) If the engine has been exposed to fire extinguishing agents on external surfaces, perform the following where appropriate:
(a) Carbon dioxide (CO2) contamination:
1 Cold sections: parts not exposed to heat require no
_
maintenance action.
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_ when exposed to CO2 must be removed and checked.
(b) Chemical foam contamination: CAUTION : DO NOT ALLOW FOAM TO ENTER ANY ENGINE CAVITIES AS FOAM
_______ RESIDUES MAY CAUSE CORROSION DAMAGE.
1 Wash exposed areas using clean, running water.
_
2 Scrub to remove all foam agents.
_
(c) Dry chemical powders contamination: CAUTION : DO NOT USE WATER. DRY AGENT COMBINES WITH WATER TO FORM
_______ AN EVEN MORE CORROSIVE COMPOUND. DO NOT ALLOW AGENT TO ENTER ANY ENGINE CAVITIES. RESIDUES WILL CAUSE CORROSION DAMAGE.
1 Remove all powder residues from engine by utilizing vacuum
_ cleaner and compressed air at 30-40 psi (205-275 kPa) as required.
2 If powder has turned to glaze due to elevated temperatures,
_ scrub with ardrox 6025 (Material No. CP2155). Subtask 72-00-00-280-059 R C. Fire Extinguishing Agents Applied Internally
(1) If the engine has been exposed to fire extinguishing agents on internal surfaces, perform the following where appropriate:
(a) Carbon dioxide (CO2) contamination: Remove parts exposed to CO2 for inspection.
(b) Chemical foam contamination. R NOTE : Do as soon as possible to avoid soak of contamination on
____ R engine hardware.
1 Flush with clean water and motor engine (if practicable) to
_
remove foam residues.
2 Remove engine for disassembly, inspection and cleaning.
_
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(c) Dry chemical powder contamination: 1 Remove all accessible loose powder using vacuum cleaner and
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