Service difficulty report · Control Cable · Boeing 737824

Difficulty date
September 11, 2025
Submitted
September 15, 2025
Operation
Air carrier
Aircraft
N73270
Make and model
Boeing 737824
Aircraft serial
31632
Aircraft time
73,913 hours, 26,030 cycles
Part
Control Cable
Condition
Out Of Limits
Stage of operation
CL
How discovered
O
Nature of condition
F
Precautionary procedure
A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

AILERON SLOW RESPONSE TO CONTOL WHEEL MOVEMENT, HYD POWER ON RT AILERON NO RESPONSE TIL 2-3 UNITS INPUT. THEN BINDING. LT SIDE NO TENSION CONTROL WHEEL FORCE SLIGHTLY HEAVY WHEN TURNING RT USING EITHER CONTROL WHEEL,WHETHER HYD ON OR OFF. CYCLED CONTROL WHEEL SEVERAL TIMES WITH HYD OFF , WHEEL FORCE MUCH LIGHTER THAN BEFORE. AILERON & SPOILER CONTROL MECHANISM THAT VISIBLE FROM W/W & FWD EE BAY WERE INSPECTED & NO DEFECT NOTED. LUBRICATED ABOVE VISIBLE AREA. AFTER LUB , WHEEL FORCE HAD BEEN MORE LIGHT & SMOOTH WHETHER HYD ON OR OFF. IAW FIM 27-11 TASK 809. IAW MM- 27-11-81 CAM FOLLOWER BEARING CLEAN & LUBE. & AILERON FEEL & CENTERING UNIT INSPECTION IAW AMM 27-11-81-210-801. AT TIMES, CENTERING FORCE TENDS TO BE WEAK. IT IS ASSUMED THAT THE PROBLEM IS INSIDE THE AILERON TRIM ACTUATOR, WHICH IS LINKED TO THESE. BEFORE PARTS ARRIVE, WILL DO FOR FORCE CHECK, AMM 27-11-00-820-804 5. AILRON FEEL CENTERING UNIT ADJ (6) . COMPLETED CABLES TENSION CHK & ADJUSTED PER AMM 27-11-00-820-801. FOUND OUT OF LIMITS AT CABLE ABSA-L ABS-R ABSA-R. SET ALL VALUES WITH IN LIMITS. INSTALLED . IAW AMM27-11-54-000-801 TEST AND ADJUSTMENT WORKS FINE. NEED IRR INSPECTION FOR AILERON CABLES ADJUST. & INSTALL, AILERON TRIM ACTUATOR. IAW AMM27-11-54-400-801 . REF GMM 09-25-05. REMOVED & INSTALLED FOR AILERON TRIM ACTUATOR & ADJUST CABLE & CHK OK ALL TEST DONE CORRECTLY.