SDR ASAA2016061217016

Service difficulty report · Warning Light · Boeing 737890

Difficulty date: June 12, 2016
Submitted: June 14, 2016
Operation: Air carrier
Aircraft: N533AS
Make and model: Boeing 737890
Aircraft serial: 35201
Aircraft time: 21,586 hours, 6,350 cycles
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Warning Light
Condition: False Activation
Location: Lt Fmc
Stage of operation: TX
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 TAXI IN, INTERMITTENT LT FMC FAILURE WITH VTK FLAG. ACFT GROUNDED. PERFORMED FIM 34-61, TASK 836. CYCLED CIRCUIT BREAKERS, LT FMC RETURNED TO NORMAL OPERATION. INFLIGHT FAULTS SHOWS 1 LT FMC FAILURE ON GROUND, NO OTHER FAULTS NOTED, REF FIM 34-61, TASK 801. HISTORY LAST 90 DAYS. ETOPS GROUND VERIFICATION NORMAL, REF AMM 34-61-00, FMC OPS TEST.