SDR ASAA2021060535040

Service difficulty report · Fmc · Boeing 737890

Difficulty date: June 5, 2021
Submitted: June 7, 2021
Operation: Air carrier
Aircraft: N584AS
Make and model: Boeing 737890
Aircraft serial: 35682
Aircraft time: 50,347 hours, 14,906 cycles
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Fmc
Part number: 1762000101
Part serial: 000709
Condition: Failed
Location: Captain'S
Part time: 60,409 hours, 20,651 cycles
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

CAPTAIN FMC FAILED IN FLIGHT. GROUNDED - YES. B737-800 FIM 34-61 TASK 801, FMCS BITE FAULTED FMC-L, OPENED & TAGGED 2 C/B, REMOVED & REPLACED FMCS-L, REMOVED TAGS & RESET 2 C/B, LOADED & VERIFIED SOFTWARE, ADJUSTED FMCS AND INSTALLATION TEST GOOD B737-800 AMM 34-61-02/401.