SDR ASAA2017031720210

Service difficulty report · Fmc · Boeing 737890

Difficulty date: March 17, 2017
Submitted: March 21, 2017
Operation: Air carrier
Aircraft: N516AS
Make and model: Boeing 737890
Aircraft serial: 39044
Aircraft time: 31,329 hours, 9,539 cycles
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Fmc
Condition: Malfunctioned
Location: Both
Stage of operation: LD
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

AFTER LANDING AND ROLLOUT BOTH FMC WENT OFFLINE. BOTH MCDU DISPLAYED NO FMC SELECTION OPTION, RNP WENT TO 9.8 NM. ACFT GROUNDED. FMC BITE CHECK FOUND NUISANCE ERROR DURING LANDING,TAXI, BOTH FMC OPS NORMAL. ACFT OK FOR SERVICE, IAW AMM 34-61-00-860-801.