Service difficulty report · Computer · Boeing 737990ER

Difficulty date
August 2, 2016
Submitted
August 8, 2016
Operation
Air carrier
Aircraft
N467AS
Make and model
Boeing 737990ER
Aircraft serial
36362
Aircraft time
8,688 hours, 2,820 cycles
Part
Computer
Part number
1762000101
Part serial
005648
Condition
Faulty
Location
E&E Bay
Part time
259 hours, 99 cycles
Stage of operation
TX
How discovered
O
Nature of condition
J
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

AFTER LANDING, SINGLE FMC OPERATION, SHOWN ON FMC SCRATCHPAD. ACFT GROUNDED. REF FIM 34-61, TASK 801, LT FMC SHOWED AN ETHERNET-2 WRAP FAULT. REF OEM 34-61, TASK 837, HARDWARE FAILURE. REF AMM 34-61-02, REMOVED, REPLACED NR 1 FMC COMPUTER. PERFORMED SOFTWARE CROSS LOAD FROM FMC-2 REF 34-61-00. OPS CHECK GOOD, REF AMM 34-61-02/34-61-00. GROUND VERIFICATION TEST GOOD REF SAME AMM'S. FMC TRANSFER SWITCH MOVED TO NORMAL. THIS CLEARS MEL 34-36J.