Service difficulty report · Unknown · Boeing 737990ER

Difficulty date
July 10, 2023
Submitted
July 12, 2023
Operation
Air carrier
Aircraft
N479AS
Make and model
Boeing 737990ER
Aircraft serial
60576
Aircraft time
28,404 hours, 8,840 cycles
Part
Unknown
Part number
UNKNOWN
Condition
Unknown
Location
Unknown
Stage of operation
DE
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

FO SIDE FMC RESET IN FLIGHT SHORTLY AFTER TOP OF DESCENT. GROUNDED - YES. PERFORMED FMCS BITE PROCEDURE FOUND INFLIGHT 1 FAULT FMC-R RATE I (INTERMITENT VERIFIED SENSORS NO FAULTS FOUND. RESET SYTEM FMCS PERFORMED GOOD BITE PROCEDURE AS PER FIM 34-61 TASK 801.