SDR ASAA2022051538344

Service difficulty report · Fmc · Boeing 7379

Difficulty date: May 15, 2022
Submitted: May 17, 2022
Operation: Air carrier
Aircraft: N931AK
Make and model: Boeing 7379
Aircraft serial: 43353
Aircraft time: 1,328 hours, 384 cycles
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Fmc
Part number: UNKNOWN
Condition: Failed
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

WHILE AT CRUISE RIGHT FMC FAILED AND VTK DISPLAYED. NORMAL OPERATION WAS RESTORED WITHOUT PILOT PILOT INTERVENTION BEFORE THE QRH WAS COMPLETED. GROUNDED - YES. FAULT CODES 31-01641 & 31-01642 "NOT ACTIVE" ON OMF FOR FREVIOUS FLT LEG PER ITEM B737-9 IFIM 31-65-00-810-A06 & 31-65-00-810-A07, PROBLEM DETERMINED TO BE INTERMITTENT, NO HISTORY 90 DAYS. NO OTHER FAULT AT PRESENT.

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