SDR ASAA2018101526464

Service difficulty report · Fmc · Boeing 737890

Difficulty date: October 12, 2018
Submitted: October 15, 2018
Operation: Air carrier
Aircraft: N558AS
Make and model: Boeing 737890
Aircraft serial: 35177
Aircraft time: 46,756 hours, 13,789 cycles
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Fmc
Part number: 1762000101
Part serial: 003945
Condition: Inoperative
Location: E&E Bay
Part time: 36,324 hours, 10,975 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

FMC R FAILED IN FLIGHT, RAN QRH, BOTH ON FMC "L" FOR REMAINDER OF FLIGHT. GROUNDED - YES. REMOVED AND REPLACED RT FMC COMPUTER REF AMM 34-61-02-400-801, OPS NML REF AMM 34-61-00-710-801. CROSS LOADED SOFTWARE AND ADJUSTED PERF FACTORS REF AMM 34-61-00-800-801. ACCOMPLISHED DFCS FMC LRU REPLACEMENT TEST, GRP BITE 34, ALL TEST PASSED REF AMM 22-11-01/201.