YES  YES YES

12 IS THERE CONTINUITY
24 REPLACE THE REVERSER CON-BETWEEN PLUG D3052 (D3056), TROL VALVE MODULE, M1173
PIN 7, AND GROUND (M1174)(AMM 78-34-01/401).
(WDM 78-32-11,-21)?

NO
YES

13 DISCONNECT THE PLUG FROM
25 REPAIR THE OPEN CIRCUIT THE CONTROL STAND, CONNECTOR FROM THE REVERSER CONTROL D5148P (WDM 78-32-11,-21). VALVE MODULE, M1173 (M1174),
IS THERE CONTINUITY PLUG D3052 (D3056), PIN 7, TO BETWEEN THE RECEPTACLE, PINS 4 THE REVERSER ARM SWITCH, S824 AND 6? (S826), OR FROM THE ARM SWITCH
TO SPLICE SM101 (SM98).
NO
NO

14 EXAMINE THE ADJUSTMENT OF
26 ADJUST THE SWITCH
THE REVERSER ARM SWITCH, S824(AMM 78-34-05/201).
(S826)(AMM 78-34-05/201).

IS THE ADJUSTMENT OK?
YES

27 REPLACE THE SWITCH (AMM 78-34-05/201).
NO YES

4 DISCONNECT PLUG D3052 15 DISCONNECT THE PLUG FROM 28 REPAIR THE OPEN CIRCUIT
(D3056) FROM THE REVERSER CON-THE CONTROL STAND, CONNECTORFROM THE REVERSER CONTROL
TROL VALVE MODULE, M1173 D8315 (D8313) VALVE MODULE, M1173 (M1174),
(M1174)(WDM 78-32-11,-21). (WDM 78-32-11,-21). PLUG D3052 (D3056), PIN 4, TO

IS THERE 28V DC BETWEEN IS THERE CONTINUITY SPLICE SM100 (SM99), IN THE
PIN 4 AND GROUND?BETWEEN THE RECEPTACLE, PINS 4 P6-2 CIRCUIT BREAKER PANEL
AND 5 (22 AND 23)?(WDM 78-32-11,-21).

YES
NO

SEE SHEET 3 NO
(BLOCK 5)  16 EXAMINE THE ADJUSTMENT OF 29 ADJUST THE SWITCH THE REVERSER CONTROL SWITCH, (AMM 78-34-04/201). S828 (S829)(AMM 78-34-04/201).
IS THE ADJUSTMENT OK?
YES
30 REPLACE THE SWITCH (AMM 78-34-04/201).
Reverser Does Not Extend. REVERSER UNLOCKED Light Does Not Come On.
Reverse Interlock Does Not Release.
Figure 102 (Sheet 2)

C97093
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH TWO LIGHT EAU ú

 71-00-50
 WITHOUT SYNC LOCKS  ú  CONFIG  7
 WITH REVISED STOW SWITCH WIRING  ú  C01  Page 110
 ú  Jul 15/94 

BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
FROM SHEET 2
(BLOCK 4)

YES NO

5 IS THERE CONTINUITY
31 REPAIR THE OPEN CIRCUIT
BETWEEN PLUG D3052 (D3056), FROM THE REVERSER CONTROL
PIN 5, AND GROUND VALVE MODULE, M1173 (M1174),
(WDM 78-32-11,-21)? PLUG D3052 (D3056), PIN 5, TO

SPLICE SM101 (SM98), IN THEYES P6-2 CIRCUIT BREAKER PANEL (WDM 78-32-11,-21).

NO
6 IS THERE 28V DC BETWEEN
PLUG D3052 (D3056), PIN 3, AND
GROUND (WDM 78-32-11,-21)?

YES YES
7 EXAMINE THE ADJUSTMENT OF
33 REPLACE THE SWITCH
THE REVERSER STOW SWITCH, S825 (AMM 78-34-05/201).
(S827)(AMM 78-34-05/201).

IS THE ADJUSTMENT OK? NO
34 ADJUST THE SWITCH (AMM 78-34-05/201).
Reverser Does Not Extend. REVERSER UNLOCKED Light Does Not Come On.
Reverse Interlock Does Not Release.
Figure 102 (Sheet 3)

C97095
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH TWO LIGHT EAU ú

 71-00-50
 WITHOUT SYNC LOCKS  ú  CONFIG  7
 WITH REVISED STOW SWITCH WIRING  ú  C01  Page 111
 ú  Jul 15/94 

BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
REVERSER DOES NOT EXTEND. "REVERSER UNLOCKED" LIGHT DOES NOT COME ON. REVERSE INTERLOCK DOES NOT RELEASE.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
PREREQUISITES
MAKE SURE THESE CIRCUIT BREAKERS ARE CLOSED:
ENG 1 SYNC LOCK
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-ALTN
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
THRUST REVERSER SLEEVES ARE RETRACTED
LOCKPIN INSTALLED IN THE THRUST REVERSER CONTROL
VALVE (AMM 78-31-00/201)
WARNING:BE CAREFUL WHEN YOU DO WORK NEAR THE THRUST REVERSER AND WHEN YOU OPERATE THE FLIGHT DECK CONTROLS. INJURY TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
　
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