Service difficulty report · Motor · Boeing 737900ER

Difficulty date
April 6, 2021
Submitted
April 7, 2021
Operation
Air carrier
Aircraft
N37419
Make and model
Boeing 737900ER
Aircraft serial
31666
Aircraft time
41,801 hours, 14,654 cycles
Part
Motor
Part number
6355C000102
Part serial
7556
Condition
Failed
Location
Stab Trim
Stage of operation
CR
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

W/ELECTRIC TRIM INOP MANUAL TRIM REQUIRED EXCESSIVE FORCE REMOVED STABILIZER TRIM MOTOR IN REF OF AMM 27-41-71-000-801. INSTALLED STAB TRIM MOTOR AS REQUIRED. REF AMM 27-41-71-400-801. PERFORMED STABILIZER TRIM MOTOR TEST TASK 27-41-71-700-801 AND STABILIZER TRIM LIMIT SWITCHES TEST TASK 27-41-00-700-805. OPS CHECK GOOD. ROTABLE PARTS CHANGE WAS INDICATED - TT # 1995686 SN OFF 7556 MOTOR, STAB, HO OFF 29-2741-9-0011 7556 ON 29-2741-9-0011 6099 ALL RII ITEMS COMPLIED. STABILIZER ELECTRIC TRIM OPERATES NORMAL AND MANUAL TRIM MOVES FREELY. ADDED ADDITIONAL EMPLOYEE ADD EMP:U346893 OPERATES NORMAL. THIS IS (1)(F) OF STAB TRIM MOTOR TEST. PERFORMED TASK 22-11-81-710-801, STAB TRIM MOTOR AUTOPILOT TEST.

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