R B. Referenced Information

R -------------------------------------------------------------------------------R REFERENCE DESIGNATION
R -------------------------------------------------------------------------------
R 24-42-00-861-001 R R 71-13-00-010-040 R 78-30-00-481-041 R R 78-36-00-010-040 R 26-12-16-991-003
R 3. Job Set-up
__________
R Subtask 26-12-16-861-050 Energize the Ground Service Network from the External Power Opening of the Fan Cowl Doors Make the Thrust Reverser Unserviceable for Maintenance Opening of the Thrust Reverser Doors Fig. 403
R A. Energize the ground service network R (Ref. TASK 24-42-00-861-001).

R  Subtask 26-12-16-941-051 
R  B. Safety Precautions 
R  (1) On the center pedestal, on the ENG panel 115VU: 
R  (a) Put a warning notice to tell persons not to start the engine. 
R  (2) Make sure that the engine 1(2) shutdown occurred not less than 5 
R  minutes before you do this procedure. 
R  (3) On the overhead maintenance panel 50VU: 
R  (a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) 
R  pushbutton switch is off. 
R  (b) Put a warning notice to tell persons not to energize the FADEC 
R  1(2). 
R  Subtask 26-12-16-865-053 
R  C. Open, safety and tag this(these) circuit breaker(s): 
R  -------------------------------------------------------------------------------
R  PANEL  DESIGNATION  IDENT. LOCATION 
R  -------------------------------------------------------------------------------
R  FOR 1000EM1 
R  49VU ENGINE/1/FIRE DET/LOOP A  7WD1  A06 
R  121VU ENGINE/ENG1/FIRE DET/LOOP B  8WD1  Q38 
R  FOR 1000EM2 
R  49VU ENGINE/2/FIRE DET/LOOP B  8WD2  A07 
R  121VU ENGINE/ENG2/FIRE DET/LOOP A  7WD2  Q39 
R  Subtask 26-12-16-010-054 
R  D. Get Access 
R  (1) Open the fan cowl doors: (Ref. TASK 71-13-00-010-040) 
R  FOR 1000EM1 
R  437AL, 438AR 
R  FOR 1000EM2 
R  447AL, 448AR 
R  (2) Put the access platform in position.

R  Subtask 26-12-16-040-052 
R  E. Make the thrust reverser unserviceable (Ref. TASK 78-30-00-481-041). 
R  Subtask 26-12-16-010-055 
R  F. Open the thrust reverser doors: (Ref. TASK 78-36-00-010-040) 
R  FOR 1000EM1 
R  451AL, 452AR 
R  FOR 1000EM2 
R  461AL, 462AR 
R  4. Procedure_________ 
R  (Ref. Fig. 403/TASK 26-12-16-991-003) 
R  Subtask 26-12-16-020-052 
R  A. Removal of the Support Assembly 
R  (1) Disconnect the connectors of the fire detectors and put blanking caps 
R  on the electrical connectors. 
R  (2) Remove the nuts (1), bolts (2), washers (6) and the clamps (3). 
R  (3) Loosen and remove the bolts (5) and nuts (4) from the support. 
R  (4) Remove the support assembly (7).

R R  Pylon Fire Detectors - Support Figure 403/TASK 26-12-16-991-003
 1EFF : 1 1 1CES  ALL  1 111 26-12-16 Page 414 Feb 01/01

 TASK 26-12-16-400-002
 Installation of the Support with the Pylon Fire Detectors
 WARNING : BE CAREFUL WHEN YOU WORK ON THE ENGINE COMPONENTS IMMEDIATELY AFTER
_______ THE ENGINE IS SHUTDOWN. THE ENGINE COMPONENTS CAN STAY HOT FOR UP TO ONE HOUR.
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific warning notice
 No specific access platform 1 m (3 ft. 3 in.)

 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-42-00-861-001 Energize the Ground Service Network from the External Power 24-42-00-862-001 De-energize the Ground Service Network Supplied from the External Power
　
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