SUBTASK 30-00-00-420-003
(2) Connect the electrical connector to the pressure switch.
SUBTASK 30-00-00-860-011
(3) If it is necessary, unlock the 9th stage bleed air modulating and shutoff valve:
(a) Loosen the position indicator screw.
(b) Slide the lock out of the recess in the cover plate.
(c) Apply loctite silver grade anti-seize compound, D50188 or Loctite C5-A compound,
D00667 or compound, D00010 to position indicator screw thread.
(d) Tighten the position indicator screw until mated with slot in the butterfly shaft.
SUBTASK 30-00-00-860-022
(4) Remove the safety tags and close these circuit breakers:
CAPT Electrical System Panel, P18-3
Row Col Number Name
A 6 C00148 ANTI-ICE & RAIN ENG 1 & WING CONT
A 7 C01001 ANTI-ICE & RAIN ENG 1 COWL AI VALVE
B 6 C00149 ANTI-ICE & RAIN ENGINE 2 CONTROL
B 7 C01002 ANTI-ICE & RAIN ENG 2 COWL AI VALVE
G. Secure the Engine Access Panels
SUBTASK 30-00-00-010-014
(1) Do this task: Close the Thrust Reverser (Selection), TASK 78-31-00-010-804-F00.
SUBTASK 30-00-00-010-013
(2) Do this task: Close the Fan Cowl Panels, TASK 71-11-02-410-801-F00.
H. Engine Cowl Anti-Ice Valve Repair
SUBTASK 30-00-00-810-003
(1) Correct the fault.
(a) Find the fault code or description of the fault that occurred.
(b) If you find a fault code, then do these steps:
1) Go to the Fault Code Index in the applicable chapter of the FIM and find the fault
code.
NOTE: The first two digits of the fault code is the FIM chapter.
2) Find the task number on the same line as the fault code.
3) Go to the task in the FIM and do the steps in the task.
(c) If you find a description of the fault, then do these steps:
1) Go to the Observed Fault List at the beginning of the FIM and find the best
description for the fault.
2) Find the task number on the same line as the fault description.
3) Go to the task in the FIM and do the steps in the task.
SUBTASK 30-00-00-440-003
(2) If the fault was repaired, remove the INOP placards from the affected position light and ENG
ANTI-ICE switch.
END OF TASK
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
30-00-00
Page 919
D633A101-ILF Feb 15/2018
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
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