SDR ASAA2015053011915

Service difficulty report · Fmc · Boeing 737890

Difficulty date: May 30, 2015
Submitted: June 2, 2015
Operation: Air carrier
Aircraft: N587AS
Make and model: Boeing 737890
Aircraft serial: 35684
Aircraft time: 29,332 hours, 8,587 cycles
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Fmc
Condition: Malfunctioned
Location: Right
Stage of operation: CR
How discovered: O
Nature of condition: O
Precautionary procedure: O

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

What was found

RT FMC BLANKED OUT IN CRUISE, FMC CDU ANNUNCIATORS FLASHED AND SCREEN SHOWED "BITE TEST", THEN ALL RETURNED TO NORMAL. ALSO DROPPED SID ON DEPARTURE. ACFT GROUNDED. RT FMC TESTED IAW MM 34-61-00 AND NO CURRENT FAULTS. INFLIGHT FAULT PAGE ONLY LOGGED F/O CDU FAULT. F/O'S FMC CDU OPS CK NORMAL. NO HISTORY 30 DAYS.