SDR ASAA2015082212968

Service difficulty report · Warning Message · Boeing 737890

Difficulty date: August 22, 2015
Submitted: August 24, 2015
Operation: Air carrier
Aircraft: N584AS
Make and model: Boeing 737890
Aircraft serial: 35682
Aircraft time: 30,913 hours, 9,255 cycles
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Warning Message
Condition: False Activation
Location: Fmc
Stage of operation: NR
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

ON CDU LEGS PAGE, SPEEDS AND ALTITUDES WOULD NOT POPULATE. ACFT GROUNDED. PERFORMED BITE OF BOTH FMC'S REF FIM 34-61, TASK 801, NO FAULTS. CYCLED ACFT POWER AND CREW REPROGRAMMED FMC'S, SPEED AND ALTITUDES POPULATED. PERFORMED OPS CKS OF NR 1 AND NR 2 FMC'S REF AMM 34-61-00. ALL OPS NORMAL WITH NO FAULTS. ALL GROUND FUNCTIONAL TESTS PASS OK FOR ETOPS SERVICES. NO HISTORY 30 DAYS.