SDR ASAA2022032037717

Service difficulty report · Unknown · Boeing 7379

Difficulty date: March 20, 2022
Submitted: March 21, 2022
Operation: Air carrier
Aircraft: N921AK
Make and model: Boeing 7379
Aircraft serial: 43337
Aircraft time: 1,450 hours, 440 cycles
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Unknown
Part number: UNKNOWN
Condition: Unknown
Location: Unknown
Stage of operation: CR
How discovered: V
Nature of condition: O
Precautionary procedure: O

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

What was found

ABOUT AN HOUR BEFORE LANDING, LEFT FMC FAILED. RECOVERED IN LESS THAN 20 SECONDS. NORMAL OPERATION FOR REMAINDER OF FLIGHT. GROUNDED - YES. A/C HAS NO HISTORY OF L/H FMC FAULTS. PERFORMED L/H FMC OPS TEST REF B737-9 AMM 34-61-00-710-801 AND GROUND VERIFICATION TEST PASSED.

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