SDR ASAA2020030932386

Service difficulty report · Fmc · Boeing 737900ER

Difficulty date: March 8, 2020
Submitted: March 10, 2020
Operation: Air carrier
Aircraft: N407AS
Make and model: Boeing 737900ER
Aircraft serial: 41731
Aircraft time: 28,814 hours, 9,134 cycles
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Fmc
Condition: Malfunctioned
Location: Cockpit
Stage of operation: CR
How discovered: O
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

ENROUTE MULTIPLE VTX AND FMC #1 FAILURES. ON ONE OF THE FAILURES FMC DID NOT RESET FOR 3-5 MINUTES AND WE RECEIVED AN A/T LIM ANNUNCIATION ON THE ED. GROUNDED - YES. L FMC LOGGED PGM FAULT LAST LEG. NOW NOT ACTIVE. ACCOMPLISHED L FMC OPS CHECK REF B737-900 AMM 34-61-00, GROUND VERIFICATION TEST PASSED.

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