SDR ASAA2016061817062

Service difficulty report · Unknown · Boeing 737890

Difficulty date: June 18, 2016
Submitted: June 20, 2016
Operation: Air carrier
Aircraft: N563AS
Make and model: Boeing 737890
Aircraft serial: 35180
Aircraft time: 36,949 hours, 11,144 cycles
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Unknown
Condition: Malfunctioned
Location: Cockpit
Stage of operation: NR
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

LOST BOTH FMC, VTK FLAG BOTH SIDES, FOLLOWED BY A/T LIMIT. AFTER 30 SECONDS, LT AND RT FMC CAME BACK. ACFT GROUNDED. VERIFIED NR 1 AND NR 2 FMC RESET ON FLT LEG 1 DURING NR 1 AND NR 2 FMC BITE, REF FIM 34-61,TASK 801. NO CURRENT FAULTS ON NR 1 OR NR 2 FMC. PERFORMED NR 1 AND NR 2 FMC SYS AND OPS TEST, REF AMM 34-61-00. NO FAULTS FOUND, ALL SOFTWARE EFFECTIVE FOR ACFT NR 1 AND NR 2 FMC.