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 71-00-42
 ALL  ú
 ú  C01  Page 107
 ú  Nov 15/92 

BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
FROM SHEET 1 (BLOCK 5)

NO
NO

7 DO THE T2/CIT SENSOR TEST

37 REPLACE THE T2 SENSOR (AMM 71-00-00/501, TEST (AMM 73-21-09/401) OR THE CIT NO. 11).SENSOR (AMM 73-21-02/401) AS
ARE THE SENSORS SERVICE-APPLICABLE.
ABLE?

YES YES9
VISUALLY EXAMINE VSV

39 REPAIR/REPLACE THE
ACTUATION SYSTEM FOR DAMAGECOMPONENTS OR REPLACE THE
(AMM 72-35-00/601). ENGINE (AMM 71-00-02/401).

IS DAMAGE MORE THAN THE
LIMITS FOUND?

NO
NO
41 ADJUST THE VSV ACTUATORS (AMM 75-31-00/501), THEN ADJUST THE VSV FEEDBACK CABLE (AMM 75-31-02/501).

YES
NO

13 DO THE VSV FEEDBACK CABLE
STATIC RIGGING CHECK
(AMM 75-31-02/501).

IS THE RIGGING CHECK OK?

YES
NO

15 DO THE VBV FEEDBACK CABLE
STATIC RIGGING CHECK
(AMM 75-32-05/501).

IS THE RIGGING CHECK OK?
YES
YES
NO

SEE SHEET 3 (BLOCK 19)

Cannot Get Takeoff Power with PMC OFF; PMC ON OK or Cannot Get
Takeoff Power with PMC ON and PMC OFF
Figure 103 (Sheet 2)

B05157
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 71-00-42
 ALL  ú
 ú  C01  Page 108
 ú  Nov 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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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 17)
YES

NO

19 EXAMINE THE BLEED VALVE
49 REPLACE THE FUEL GEAR FUEL GEAR MOTOR (AMM 75-32-01/ MOTOR (AMM 75-32-02/401).
601).
IS THE FUEL GEAR MOTOR SERVICEABLE?

YES NO

20 DO THE THRUST LEVER TRAVEL
50 REPAIR/REPLACE THE THRUST
CHECK (AMM 71-00-59/101, LEVER CABLE (AMM 76-11-04/201)
FIG. 113).OR THRUST LEVER PUSH-PULL
IS THE TRAVEL CHECK OK? CABLE (AMM 76-11-07/401).
YES YES
21 DO THE AUTOTHROTTLE
SYSTEM OPERATIONAL TEST
(AMM 22-31-00/501).
IS THE A/T SYSTEM OPERA-TION CORRECT?
NO NO

23 DO THE PART POWER TRIM
CHECK (AMM 71-00-00/501, TEST
NO. 6).
ARE THE SPEEDS CORRECT?
YES

Cannot Get Takeoff Power with PMC OFF; PMC ON OK or Cannot Get
Takeoff Power with PMC ON and PMC OFF
Figure 103 (Sheet 3)

B05151
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 71-00-42
 ALL  ú
 ú  C01  Page 109
 ú  Nov 15/93 

BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
PREREQUISITES NONE

NO
YES
NO

NO

29 REPLACE THE MEC (AMM 73-21-01/401).

27 ADJUST THE PMC PLA GAIN (AMM 73-21-00/501) AND/OR REPLACE THE FUEL CONTROL BOX (AMM 76-11-08/401).
CANNOT GET TAKEOFF POWER WITH PMC ON; PMC OFF OK
1
DO A CHECK OF THE PMC PART NUMBER.
 IS THE PART NUMBER CORRECT FOR THE ENGINE MODEL?

YES
3 DO THE PS12 TUBE/MANIFOLD CHECK (AMM 71-00-59/101, FIG. 104).
 ARE LEAKS/BLOCKAGE/DAMAGE FOUND?

NO

5 DO THE PMC AND RELATED
COMPONENTS TEST (AMM 73-21-00/
501).
 IS THE PMC OPERATION CORRECT?

YES

7 DO THE PMC PLA RVDT
VOLTAGE CHECK (AMM 73-21-00/
501).
 IS THE VOLTAGE CHECK CORRECT?
YES

Cannot Get Takeoff Power With PMC ON; PMC OFF OK
Figure 103A

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
　
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