SDR ASAA2023030742229

Service difficulty report · Unknown · Boeing 7379

Difficulty date: March 7, 2023
Submitted: March 8, 2023
Operation: Air carrier
Aircraft: N975AK
Make and model: Boeing 7379
Aircraft serial: 64960
Aircraft time: 3,264 hours, 963 cycles
System (JASC): 2210 · Autopilot System
Part: Unknown
Part number: UNKNOWN
Condition: Unknown
Location: Unknown
Stage of operation: DE
How discovered: V
Nature of condition: J
Precautionary procedure: K

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

What was found

SPEED TRIM LIGHT ILLUMINATED ON RECALL CHECK DURING DESCENT. RAN QRH CHECK. FOUND SINGLE CHANNEL FAULT. GROUNDED - YES. FOLLOWED B737-9 IFIM 22-11-00-810-071. PERFORMED DFCS FAULT HISTORY FOR CHANNEL A & B. FOUND CH:A, STAB TRIM CUTOUT RELAY, STAB TRIM SW/MODULE, PRI ELEC ACT-STAB TRIM, COL SW MODULE MESSAGES ON LAST LEG. PERFORMED BITE LIBRARY TEST FOR CORRELATED MESSAGES. TEST PASSED.

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