SDR ASAA2022101640323

Service difficulty report · Fmc · Boeing 7379

Difficulty date: October 16, 2022
Submitted: October 17, 2022
Operation: Air carrier
Aircraft: N935AK
Make and model: Boeing 7379
Aircraft serial: 44077
Aircraft time: 1,963 hours, 587 cycles
System (JASC): 3461 · Flight Management Computing Software System
Part: Fmc
Part number: UNKNOWN
Condition: Fault Message
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

DURING DECENT, FMC DISAGREE - VERTICAL MESSAGE OCCURRED DURING MUCH OF THE TIME. THE MESSAGE DID NOT CONTINUE IN THE APPROACH PHASE. GROUNDED - YES. FOLLOWED B737-9 IFIM 34-61-00-810-918 FOR FMC DISAGREE. FAULT CLEARED FIM PROCEDURE, OPS CHECK GOOD. NO HISTORY OF FMC FAULTS WITHIN 30 DAYS.

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