SDR ASAA2023070243877

Service difficulty report · Unknown · Boeing 7379

Difficulty date: July 2, 2023
Submitted: July 5, 2023
Operation: Air carrier
Aircraft: N943AK
Make and model: Boeing 7379
Aircraft serial: 44084
Aircraft time: 3,334 hours, 945 cycles
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Unknown
Part number: UNKNOWN
Condition: Unknown
Location: Unknown
Stage of operation: NR
How discovered: O
Nature of condition: J
Precautionary procedure: O

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

What was found

WHILE IN FLIGHT, LEFT FMC FAILED. CAPTAIN'S NAV DISPLAY SHOWED VTK FLAG. NO FMC DATA WAS ON CAPTAIN'S NAV DISPLAY MAP MODE. FMC DATA WAS LOST ON BOTH CDUS. AFTER 30 SECONDS, SYSTEM RESUMED NORMAL OPERATION. GROUNDED - YES. RESET FMC'S REF IFIM TASK 34-61-00-810-918. ALL FAULTS CLEARED. NO FURTHER DEFECTS NOTED.

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