Service difficulty report · Motor · Boeing 737924ER

Difficulty date
July 11, 2025
Submitted
July 14, 2025
Operation
Air carrier
Aircraft
N39423
Make and model
Boeing 737924ER
Aircraft serial
32829
Aircraft time
54,527 hours, 19,248 cycles
Part
Motor
Part number
6355C000102
Part serial
03466
Condition
Faulted
Location
Zone 300
Part time
49,884 hours, 17,618 cycles
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

STABILIZER TRIM SWITCHES DO NOT OPERATE TRIM UP AND TRIM DOWN CA PTAIN'S STARTED FIM TASK27-41-TASK 804. PERFORMED STM LOGIC CARD RESET. NO HELP. CHECKED R64 RELAY CKD GOOD. CHECKED FOR PWR AT STM (M1659) PWR AVAILABLE AT PIN 1,2,3 PER FIM. STAB MOTOR NEEDS REPLACED. REMOVED AND REPLACED STABILIZER TRIM MOTOR REF AMM 27-41-21. AMM 27-41-71 INSPECTED STAB TRIM MOTOR INSTALLATION PER AMM 27-41-71 AND GMM 09-25-05. PERFORMED STABILIZER TRIM MOTOR TEST REF AMM 27-41-71-700-801, STABILIZER TRIM LIMIT SWITCHES TEST REF AMM 27-41-00-700-805 AND STABILIZER TRIM MOTOR AUTOPILOT TEST REF AMM 22-11-81-710-801. ALL TEST PASSED.