Service difficulty report · Trim System · Boeing 737924ER

Difficulty date
June 6, 2024
Submitted
June 10, 2024
Operation
Air carrier
Aircraft
N69835
Make and model
Boeing 737924ER
Aircraft serial
60087
Aircraft time
30,712 hours, 11,148 cycles
Part
Trim System
Part number
UNKNOWN
Condition
Faulted
Stage of operation
NR
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

SPEED TRIM FAIL ON CLIMBOUT THE FOLLOWING ARE IMAGES OF THE FLIGHT FAULTS ON CHANNEL A ANDB. THERE ARE ALLOT MORE JUST DOWNLOADED SOME OF THEM FOUND THE AUTOPILOT STAB TRIM SWITCH IN THE CUTOUT POSITION. PUT FAILURES. PERFORMED CATIIII AUTOLAND TEST REF AMM 22-97-00/501 SWITCH IN THE NORMAL POSITION TESTED ELECTRIC TRIM IN FLAPS U AUTOLAND TEST PASSED. AIRCRAFT IS RETURNED TO FULL CATIII AND DOWN POSITION TO ENSURE THE TRIM CHANGED SPEEDS. RAN THE CAPABILITY STAB TRIM LRU REPLACEMENT TEST THRU THE CDU MULTIPLE TIMES.