Service difficulty report · Fmc · Boeing 737990ER

Difficulty date
November 20, 2019
Submitted
November 23, 2019
Operation
Air carrier
Aircraft
N431AS
Make and model
Boeing 737990ER
Aircraft serial
43255
Aircraft time
24,074 hours, 7,834 cycles
Part
Fmc
Condition
Faulted
Location
Right
Stage of operation
AP
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

FMC DISAGREE- VERTICAL LIGHTS ILLUMINATED FOR ABOUT 3 MINUTES ON APPROACH. FMC SINGLE OPERATION ILLUMINATED AFTER LANDING. GROUNDED - YES. ACCOMP FMC BITE ALL SENSORS SHOW OK. INFLT FAULT SHOW R FMC PGM INTERMITTENT FAULT. CYCLED PWR TO A/C. ACCOMP FMC OPS TEST, TEST PASS REF B737-900 FIM 34-61 TASK 801, FIM 34-61 TASK 807 & B737-900 AMM 34-61-00-710-026.