Service difficulty report · Trim Motor · Boeing 737824

Difficulty date
April 5, 2011
Submitted
April 5, 2011
Operation
Air carrier
Aircraft
N12221
Make and model
Boeing 737824
Aircraft serial
28930
Aircraft time
40,236 hours, 14,291 cycles
Part
Trim Motor
Part number
6355B000103
Part serial
0482
Condition
Failed
Location
Stabilizer
Part time
32,097 hours, 11,449 cycles
Stage of operation
CL
How discovered
O
Nature of condition
F, J
Precautionary procedure
A

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

What was found

AFTER T/O AIRCRAFT TRIMMED NOSE DOWN ON ITS OWN TRIMMED NOSE UP STOPPED IT BUT THEN CONTINUED NOSE DOWN OVERHEAD SPEED TRIM LIGHT ILLUMINATED TURNED OFF MAIN ELEC SWITCH THEN AUTOPILOT TRIM SWITCH TRIMMING ONLY STOPPED VALL OTAT BREAKES IN R/S PER FIM 27-41-00-810-811 AND FOUND STABILIZER TRIM MOTOR TO BE AT FAULTS. REMOVED & REPLACED STAB TRIM MOTOR PER MM 27-41- 71 ALL TEST NORMAL. A/C OK TO CONTINUE. IDT ROTABLE PARTS CHANGE WAS INDICATED - TT # 1451077 S/N OFF 00482 MOTOR, STAB, HO OFF 29-2741-9-0008 0482 ON 29-2741-9-0008 3291.