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 27-09-71
 ALL  ú ú 02 Page 105 ú Nov 15/98
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
TROUBLE  PROBABLE CAUSE  ISOLATION PROCEDURE  REMEDY 
symmetrical. tolerances and rigging within trailing edge wheel with WCP 6 to 12` control Consistent trim requirements of of 6 to 12 Degree control wheel. flap 0 to flap 1, flaps move from change, when Consistent trim flaps 40 only. flaps 15 to wheel at 6 to 12` control requirement of Consistent trim  Warped flap or aileron surface outboard midflap outboard end of interference with Rub strip Outboard flap screw fairings Outboard midflap deflection control stop outboard roller Flaps 40 mid-to-aft flap gaps Drive screw upstop clearance rigging  within 0.12 inch for full length. Check surface trailing edges for straightness Check fairing preload. Check clearance between rub strip and midflap. Check clearance between ramp and roller. clearances. screws upstop Check outboard flap Check gap symmetry.  (AMM 27-51-34/501). (AMM 27-51-34/501). Adjust as required Adjust symmetry within 0.05 inch (AMM 27-51-34/401). Replace warped components (AMM 27-51-52/501). (AMM 27-51-34/501). alignment trailing edge Recheck WCP deflection ramp. and adjust Shim flap carriages Readjust (AMM 27-51-34/501). Adjust ramp for proper clearance. trailing edge Recheck WCP alignment 
tailcone screw fairing aft flap and between outboard interference Flaps 40 screw fairings Fairing tracks in outboard flaps  Check security of track attachments in fairings. Check fairing tailcone clearance with outboard aftflap at flaps 40 setting.  (AMM 27-51-52/401). (AMM 27-51-52/501). Rework or replace preload at flaps 0 adjust fairing carriage and/or damaged fairings if Shim flaps at 

Troubleshooting Chart
Figure 101 (Sheet 3)

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 27-09-71
 ALL  ú ú 02 Page 106 ú Mar 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
TROUBLE  PROBABLE CAUSE  ISOLATION PROCEDURE  REMEDY 
while 15 units lateral trim Consistent or at 15-units while flaps up lateral trim Consistent flaps 15 units of while at lateral trim Consistent flaps up aileron trim at small units of corrected by lateral trim Consistent  out-of-adjustment Outboard TE flaps out-of-adjustment out-of-adjustment out-of-adjustment Outboard TE flaps Outboard TE flaps Outboard TE flaps  (AMM 27-09-71/501). (AMM 27-09-71/501). edge flaps outboard trailing Adjust the (AMM 27-09-71/501). edge flaps outboard trailing Adjust the edge flaps outboard training Adjust the (AMM 27-09-71/501). edge flaps outboard trailing Adjust the 

Troubleshooting Chart
Figure 101 (Sheet 4)

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 27-09-71
 ALL  ú ú 01 Page 107 ú Mar 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
H55356
A
737-300/400/500MAINTENANCE MANUAL
 FLIGHT CONTROLS TRIM CORRECTION - ADJUSTMENT/TEST
_________________________________________________
 1.  General_______
 A.  This procedure contains ten tasks to correct the airplane configuration when the differences in the flight controls trim are high. These tasks are as follows:
 (1)  
The adjustment of the trailing edge flaps for the difference in the FLAP UP position

 (2)  
The adjustment of the trailing edge flaps for the difference in the 15-unit position

 (3)  
The adjustment of the trailing edge flaps for the difference in the FLAP UP and 15-unit position

 (4)  
The adjustment of the trailing edge flaps for the difference in the 40-unit position

 (5)  
The adjustment of the aileron balance tab to make the lateral manual reversion forces equal

 (6)  
The correction of the difference in the speed brake rolloff

 (7)  
The correction of the rudder trim difference
　
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