A. Put the aircraft back to its initial configuration.
(1) On the MAINTENANCE PNL 50VU:
(a) Push the ENG / FADEC GND PWR / 1(2) pushbutton switch. The ON legend goes off.
(2) Do the EIS stop procedure: (Ref. TASK 31-60-00-860-002).
Subtask 74-31-00-865-054
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1JH FOR 1000EM1 2JH1, 3JH1 FOR 1000EM2 2JH2, 3JH2
R Subtask 74-31-00-862-051
R C. De-energize the ground service network (Ref. TASK 24-42-00-862-001).
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TASK 74-31-00-040-005
Temporary Modification of the JH1 and JH2 Routing for Aircraft Dispatch
Requirements
1. Reason for the Job
__________________
Refer to the MMEL TASK: 74-31-01 Ignition Ignition Systems (FAA Only) Route ignition leads to opposite ignition exciters to allow dispatch with the left ignition lead on aircraft battery bus.
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific circuit breaker(s) safety clip(s)
No specific soft-nose or plastic jaw pliers
No specific warning notice
No specific adjustable access platform 4.3 m (14 ft. 1 in.)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the R External Power R 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied R from the External Power
71-13-00-010-040 Opening of the Fan Cowl Doors
71-13-00-410-040 Closing of the Fan Cowl Doors
74-00-00-710-043 Operational Test of the Ignition System
78-30-00-081-041 Make the Thrust Reverser Serviceable after
Maintenance
78-30-00-481-041 Make the Thrust Reverser Unserviceable for
Maintenance
74-31-00-991-300 Fig. 401
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3. Job Set-up
__________
R Subtask 74-31-00-861-052
R A. Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002).
Subtask 74-31-00-941-054
R B. Safety Precautions R
R (1) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
R (2) On the center pedestal, on the ENG panel 115VU:
R (a) Put a warning notice to tell persons not to start the engine.
(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).
Subtask 74-31-00-865-059
R C. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU ENGINE/1 AND 2/IGN/SYS A 1JH A03
FOR 1000EM1 121VU ENGINE/IGN/ENG1/SYS B 3JH1 P41 121VU ENGINE/IGN/ENG1/SYS A BAT 2JH1 P39
FOR 1000EM2 121VU ENGINE/IGN/ENG2/SYS B 3JH2 P42 121VU ENGINE/IGN/ENG2/SYS A BAT 2JH2 P40
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Subtask 74-31-00-010-052
R D. Get Access
(1) Open the fan cowl doors: (Ref. TASK 71-13-00-010-040) FOR 1000EM1 437AL, 438AR FOR 1000EM2 447AL, 448AR
(2) Put an adjustable access platform in position.
Subtask 74-31-00-040-051 R E. Make the thrust reverser unserviceable (Ref. TASK 78-30-00-481-041).
4. Procedure
_________
(Ref. Fig. 401/TASK 74-31-00-991-300)
Subtask 74-31-00-020-051
R A. Put the 4000JH1 and 4000JH2 wiring harness routings and connections to
R the modified configuration as follows:
R (1) Disconnect the 4000JH1 harness connector from the upper ignition
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