SDR ASAA2017052520895

Service difficulty report · Unknown · Boeing 737990ER

Difficulty date: May 25, 2017
Submitted: May 30, 2017
Operation: Air carrier
Aircraft: N467AS
Make and model: Boeing 737990ER
Aircraft serial: 36362
Aircraft time: 11,959 hours, 3,957 cycles
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Unknown
Condition: Unknown
Location: Fmc
Stage of operation: CR
How discovered: O
Nature of condition: N
Precautionary procedure: O

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

What was found

DURING CRUISE, THE LEFT FMC FAILED. ACCOMPLISHED QRH, LEFT FMC RESTORED FOR 10 MINUTES, THEN FAILED AGAIN. ACFT GROUNDED. VERIFIED FMCS SHOWED LTH FMC FAILURE IN FLIGHT. FMC LEFT OPS NORMAL. NO HISTORY LAST 30 DAYS. ACCOMPLISHED FIM 34-61 TASK 807. GROUND VERIFICATION GOOD.