14 EXAMINE THE GAP BETWEENTHE APPLICABLE TARGET AND PROXIMITY SENSOR (AMM 78-34-03/201).
IS THE GAP IN THE LIMITS?
YES SEE SHEET 3 (BLOCK 2)
24 ADJUST THE SENSOR-TO-TARGET GAP OF THE PROXIMITY SENSORS, S831,S832,S835, AND S836 (AMM 78-34-03/201).

Reverser Fault Lights (ISO VLV OPEN and RESTOW) Stay On When Reverser
Is Retracted. Reverser Operates Normally.
Figure 118 (Sheet 2)

C97157
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH SIXTEEN LIGHT EAU ú

 71-00-50
 WITH AND WITHOUT SYNC LOCKS  ú  CONFIG  7
 ú  C01  Page 163
 ú  Jul 15/95 

BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
FROM SHEET 2 (BLOCK 14)
NO
21 REPAIR THE OPEN CIRCUIT BETWEEN THE APPLICABLE CON-NECTORS (WDM 78-32-11,-21).

YES

10 REPLACE THE ENGINE ACCES-
SORY UNIT, M528 (AMM 78-34-06/
401).
EXTEND THE THRUST REVER-
SER. PUSH AND RELEASE THE
APPLICABLE "T/R RESET" BUTTON
ON THE ACCESSORY UNIT, M528.
ARE ALL LIGHTS ON THE
ACCESSORY UNIT OFF?
NO

23 REPLACE THE APPLICABLE PROXIMITY SENSOR (AMM 78-34-03/201).

Reverser Fault Lights (ISO VLV OPEN and RESTOW) Stay On
When Reverser Is Stowed. Reverser Operates Normally.
Figure 118 (Sheet 3)

C97158
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH SIXTEEN LIGHT EAU ú

 71-00-50
 WITH AND WITHOUT SYNC LOCKS  ú CONFIG 7 ú C01 Page 164 ú Jul 15/95
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
PREREQUISITES
MAKE SURE THESE CIRCUIT BREAKERS ARE CLOSED: ENG 1 SYNC LOCK2 ENG 1 THR REV CONT SYS ENG 1 THR REV IND SYS ENG 2 SYNC LOCK ENG 2 SYNC LOCK-ALTN ENG 2 THR REV CONT SYS ENG 2 THR REV CONT SYS-ALTN2 ENG 2 THR REV IND SYS
MAKE SURE THE AIRPLANE IS IN THIS CONFIGURATION: ELECTRICAL POWER IS ON (AMM 24-22-00/201) HYDRAULIC POWER IS ON (AMM 29-15-00/201) ENGINE FIRE SWITCHES PUSHED IN
REVERSER FAULT LIGHT THRUST REVERSER SLEEVES RETRACTED
"ISO VLV OPEN" OR
LOCKPIN INSTALLED IN THE THRUST REVERSER CONTROL
"CONT VLV DEPLOY"
VALVE (AMM 78-31-00/201)
STAYS ON WHEN 
REVERSER IS  _______WARNING: BE CAREFUL WHEN YOU DO WORK NEAR THE THRUST 
RETRACTED.  REVERSER  DECK CONTROLS. INJURY TO PERSONS OR DAMAGE REVERSER AND WHEN YOU OPERATE THE FLIGHT 
OPERATES NORMALLY.  TO EQUIPMENT CAN OCCUR. 

1 DOES THE REVERSER FAULT LIGHT ON THE P5 PANEL GO OFF AFTER 2 MINUTES AFTER THE REVERSER RETRACTS?
YES
10 EXAMINE THE ADJUSTMENT OF
THE REVERSER ARM SWITCH, S824
(S826)(AMM 78-34-05/201).
IS THE ADJUSTMENT OK? YES

. ON THE ENGINE ACCESSORY UNIT, M528, PUSH THE RESET BUTTON TO ERASE THE FAULT INDICATIONS
. DO THE OPERATIONAL TEST FOR THE THRUST REVERSER (AMM 78-31-00/501).
AIRPLANES WITH THRUST REVERSER SYNC LOCKS

Reverser Fault Light ISO VLV OPEN or CONT VLV DEPLOY Stays On
When Reverser Is Retracted. Reverser Operates Normally.
Figure 119 (Sheet 1)

C97167
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH SIXTEEN LIGHT EAU ú

 71-00-50
 WITH AND WITHOUT SYNC LOCKS  ú  CONFIG  7
 ú  C01  Page 165
 ú  Jul 15/95 

BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////
A /  /
CFM56 ENGINES
737-300/400/500/  /
MAINTENANCE MANUAL ////////////////////////

(WDM 78-32-11,-21). DO A CONTINUITY TEST. IS THERE CONTINUITY
BETWEEN THE PLUG, PIN 7, AND GROUND?
YES
YES

 
　
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