SDR ASAA2021080135593

Service difficulty report · Fmc · Boeing 737990ER

Difficulty date: August 1, 2021
Submitted: August 3, 2021
Operation: Air carrier
Aircraft: N487AS
Make and model: Boeing 737990ER
Aircraft serial: 44108
Aircraft time: 21,244 hours, 6,631 cycles
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Fmc
Condition: Failed
Location: Right
Stage of operation: CR
How discovered: O
Nature of condition: J
Precautionary procedure: O

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

What was found

RIGHT FMC FAILURE AT FL 360. FOLLOWED CHECKLIST PROCEDURE RIGHT FMC RESET AND CONTINUED TO OPERATE NORMALLY. GROUNDED - YES. ACCOMPLISHED FMCS BITE REF B737-900 FIM 34-61 TASK 801, FLT FAULT PRESS POS LAT RATE LOGGED, ACCOMPLISHED FMCS FIM 34-61 TASK 824 NO FAULTS, ALL SENSOR TESTS PASSED REF FIM 34-61 TASK 801.