Service difficulty report · Warning System · Boeing 7377V3

Difficulty date
November 29, 2018
Submitted
December 2, 2018
Operation
Air carrier
Aircraft
N12754
Make and model
Boeing 7377V3
Aircraft serial
30464
Aircraft time
52,577 hours, 19,745 cycles
Part
Warning System
Condition
False Activation
Location
Cockpit
Stage of operation
CR
How discovered
O
Nature of condition
N
Precautionary procedure
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 LIGHT ON WITH A/P AND A/T OFF ELEC STAB WORKED NORMALLY AND LIGHT OFF. LOCKED BY TOMC UNLOCK TO SIGN OFF T/S PER FIM 22-11-00-810-801, DFCS BITE PROCEDURE. DFCS BITE SHOWED NO ACTIVE FAULTS. FLIGHT LEG 01 SHOWED CH A VNAV SPD LNAV ENG TRIM CMD RESPSE MON. RAN LRU TESTS PER FIM, NO FAULTS FOUND. VISUALLY INSPECTED STAB TRIM MOTOR, LIMIT SWITCHES AND CTRL COL SWITCHING MODULE. NO DEFECTS NOTED. PERFORMED COMPLETE LAND VERIFY PRECAUTIONARY. OPS CHECK GOOD.

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