SDR ASAA2021091635959

Service difficulty report · Fmc · Boeing 737990ER

Difficulty date: September 16, 2021
Submitted: September 17, 2021
Operation: Air carrier
Aircraft: N423AS
Make and model: Boeing 737990ER
Aircraft serial: 35206
Aircraft time: 30,462 hours, 9,785 cycles
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Fmc
Condition: Failed
Location: First Officer'S
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

ENROUTE F/O'S FMC FAILED ,VTK APPEARED AND LASTED APPROX 30 SECONDS FMC REBOOTED. AFTER LANDING FMC DISAGREE LIGHT ILLUMINATED TWICE. GROUNDED - YES. NO HISTORY, PERFORMED B737-900 FIM 34-61 TASK 836 F/O'S FMC RETURNED TO NORMAL OK FOR SERVICE SEAMC ROWEN CONSULTED.