SDR ASAA2018041024213

Service difficulty report · Fmc · Boeing 737990ER

Difficulty date: April 10, 2018
Submitted: April 12, 2018
Operation: Air carrier
Aircraft: N408AS
Make and model: Boeing 737990ER
Aircraft serial: 41732
Aircraft time: 21,409 hours, 7,001 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: O

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

What was found

LEFT FMC FAILED ENROUTE. RAN QRH. FMC "BOTH ON RIGHT" OPERATED FINE. GROUNDED - YES. MOVED FMC SWITCH TO NORMAL POSITION. ACCOMPLISHED FIM 34-61 TASK 836. BOTH FMCS RETURNED TO NORMAL. ACCOMPLISHED FMC BITE REF FIM 34-61 TASK 801. OPS NORMAL. THIS CLEARS MEL 34-36J.