SDR ASAA2022080739396

Service difficulty report · Fmc · Boeing 7379

Difficulty date: August 7, 2022
Submitted: August 8, 2022
Operation: Air carrier
Aircraft: N972AK
Make and model: Boeing 7379
Aircraft serial: 43389
Aircraft time: 1,479 hours, 416 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: O
Precautionary procedure: K

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

What was found

AT CRUISE @ FL 350 @ APPROX. 1530Z. EXPERIENCED A DUAL FMC FAILURE. STARTED RUNNING QRH, SYS WAS OUT FOR APPROX 45 SEC THE SELF FIXED @ APPROX 1531Z. NO APPROACH FOR PHX HAD BEEN LOADED OR DESCENT WINDS HAD BEEN LOADED. GROUNDED - YES. PERFORMED FMC SYS CKPER B737-9 AMM 34-61-00OPS CKS GD.

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