Service difficulty report · Motor · Boeing 7379

Difficulty date
May 21, 2024
Submitted
May 22, 2024
Operation
Air carrier
Aircraft
N17574
Make and model
Boeing 7379
Aircraft serial
67608
Aircraft time
1,781 hours, 617 cycles
Part
Motor
Part number
6355D000101
Part serial
31126
Condition
Faulty
Location
Stab Trim Sys
Part time
1,780 hours, 616 cycles
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
B, A

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

What was found

STAB OUT OF TRIM LITE ILLUM AT FL340 OTH PRIMARY AND B/U TRIM INOP COCKPIT OUT OF NORMAL CONFIGURATION, STAB TRIM S/WS ARE ON CUTOUT POSITION AND FLAP S/W IS ON INHIBIT POSITION REMOVED ABD REPLACED STAB TRIM MOTOR REF AMM 27-41-71-400-801 UP TP STEP G (5) STILL NEEDS BONDING CHECK. ACCOMPLISHED BONDING CHECK OF STAB TRIM MOTOR TO AIRCRAFT STRUCTURE IAW AMM 27-41-71-400-801 STEP G (5) BONDING CHECKED GOOD AND WITHIN LIMITS. REPLACED STABILZER TRIM MOTOR. IAW AMM 27-41-71-400-801. COMPLETED INSTALL OF THE STAB MOTOR OF AMM 27-41-71-400-801 UP TO TEST. COMPLETED INSTALLATION OF THE STABALIZER TRIM MOTOR IAW AMM 27-41-71-400-801 PERFOMED A STABILIZER TRIM MOTOR TEST IN REFERENCE TO B737 AMM 27-41-71-700-801 PERFORMED A STABILIZER TRIM MOTOR AUTOPILOT TEST IN REFERENCE TO B737 AMM 22-11-81-710-801 TEST PASSED

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