SDR ASAA2023110546046

Service difficulty report · Unknown · Boeing 7379

Difficulty date: November 5, 2023
Submitted: November 8, 2023
Operation: Air carrier
Aircraft: N924AK
Make and model: Boeing 7379
Aircraft serial: 43333
Aircraft time: 7,826 hours, 2,223 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: J
Precautionary procedure: K

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

What was found

DUAL FMC FAILURE IN FLIGHT AT 36,000 OVER CYBL. BOTH FMC RETURNED TO NORMAL WITHIN 5 SECONDS WITH NO PILOT INPUT. GROUNDED - YES. PERFORMED IFIM TASK 31-65-00-810-A02, OMF FAULT NOT ACTIVE 31-01611 AND 31-01612 SUGGESTING INTERMITTENT FAULT, NO FURTHER ACTION REQUIRED, NO HISTORY 30 DAYS.

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