SDR ASAA2015092813253

Service difficulty report · Fmc · Boeing 737890

Difficulty date: September 28, 2015
Submitted: September 30, 2015
Operation: Air carrier
Aircraft: N565AS
Make and model: Boeing 737890
Aircraft serial: 35181
Aircraft time: 33,846 hours, 10,342 cycles
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Fmc
Condition: Failed
Location: Right
Stage of operation: NR
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

RIGHT FMC FAILED. THEN MAP ON F/O SIDE. SINGLE FMC MESSAGE IN SCRATCH PAD. QRH PROCEDURES FOLLOWED. ACFT GROUNDED. PILOT DOES NOT INDICATE IN DEFECT DESCRIPTION WHETHER OR NOT QRH PROCEDURES REMEDIED RT FMC PROBLEM. FOUND NUMEROUS FAULTS FROM LAST FLIGHT INDICATING RT FMC FAILURE BUT RT FMC IS OPERATING NORMALLY NOW IAW DFCS LRU REPLACEMENT TEST FOR FMC'S REF AMM 22-11-00, NO FAULTS NOTED & NO MESSAGES OR FLAGS DISPLAYED.