Service difficulty report · Warning Light · Boeing 737990ER

Difficulty date
November 27, 2017
Submitted
November 29, 2017
Operation
Air carrier
Aircraft
N402AS
Make and model
Boeing 737990ER
Aircraft serial
41189
Aircraft time
20,203 hours, 6,625 cycles
Part
Warning Light
Part number
4326321089005
Condition
Malfunctioned
Location
Stab Trim
Stage of operation
AP
How discovered
O
Nature of condition
N
Precautionary procedure
O

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

What was found

STAB OUT OF TRIM LIGHT ILLUMINATED AT SOME POINT ON FINAL APPROACH, WHILE HAND FLYING. LEFT LIGHT REMAINED ILLUMINATED DURING TAXI IN AND SHUT DOWN. ACFT GROUNDED. VERIFIED DEFECT, STAB TRIM OUT OF TRIM ILLUMINATED LEFT AND WAS INTERMITTENT. ACCOMPLISHED DFCS BITE IAW FIM 22-11, TASK 801. CURRENT STATUS PASSED AND NO LAST FLIGHT FAULTS LOGGED. REMOVED AND REPLACED STAB TRIM WARNING LIGHT IAW WDM 23-13-11. ACCOMPLISHED LAND VERIFY IAW AMM 22-11-00, BIT GROUP 49, ALL TESTS PASSED. ACCOMPLISHED STAB TRIM WARNING LIGHT TEST IAW AMM 33-11-00. ALL GROUND TESTS PASS.