SDR ASAA2014122910093

Service difficulty report · Fmc · Boeing 737990ER

Difficulty date: December 29, 2014
Submitted: January 2, 2015
Operation: Air carrier
Aircraft: N468AS
Make and model: Boeing 737990ER
Aircraft serial: 41735
Aircraft time: 1,570 hours, 526 cycles
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Fmc
Condition: Malfunctioned
Location: Captain'S
Stage of operation: CR
How discovered: O
Nature of condition: J
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, RECEIVED AN FMC AMBER LIGHT, VTK AND MAP ANNUNCIATION ON CAPT NAV DISPLAY. AFTER RUNNING THE FMC FAIL QRH PROCEDURE SINGLE FMC OPERATION RESTORED. CAPTAIN`S FMC FAILED. ACFT GROUNDED. BITE CHECK OF FMC IS GOOD, NO CURRENT FAULTS. ACCOMPLISHED FMC SYSTEM TEST, TEST PASS. NO PRIOR HISTORY 90 DAYS, REF MM 34-61-00-730-801. ETOPS GROUND VERIFICATION SATISFACTORY.