SDR ASAA2016062417153

Service difficulty report · Fmc · Boeing 737990ER

Difficulty date: June 24, 2016
Submitted: June 27, 2016
Operation: Air carrier
Aircraft: N433AS
Make and model: Boeing 737990ER
Aircraft serial: 41704
Aircraft time: 10,724 hours, 3,442 cycles
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Fmc
Condition: Malfunctioned
Stage of operation: TX
How discovered: V
Nature of condition: O
Precautionary procedure: K

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

What was found

AFTER LANDING BOTH FMC'S WENT BLANK. ACFT GROUNDED. ACCOMPLISHED FMCS BITE REF FIM 34-61, TASK 801. SENSOR CK GOOD WITH NO FAULTS. NO INFLIGHT FAULTS LOGGED. ACCOMPLISHED FIM 34-61, TASK 807. OPS CK GOOD WITH NO FAULTS. ACCOMPLISHED FMCS OPS TEST REF AMM 34-61-00-710-801. OPS CK GOOD. ACCOMPLISHED ADIRS BITE REF FIM 34-21, TASK 801. OPS CK GOOD. GROUND VERIFICATION SUCCESSFUL.