SDR ASAA2015012410398

Service difficulty report · Fmc · Boeing 737990ER

Difficulty date: January 24, 2015
Submitted: January 26, 2015
Operation: Air carrier
Aircraft: N467AS
Make and model: Boeing 737990ER
Aircraft serial: 36362
Aircraft time: 2,476 hours, 815 cycles
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Fmc
Condition: Malfunctioned
Stage of operation: TX
How discovered: 9
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

WEIGHT & BALANCE NUMBERS FROM ACARS NOT INTERFACING CORRECTLY WITH FMC ON TRIM & POWER SETTINGS. ACFT GROUNDED. VERIFIED FAULT. OPEN 4 C/B'S, 2 FOR RT FMC & 2 FOR ACARS CMU AND CLOSED SAME 4 C/B'S. VERIFIED WEIGHT & BALANCE NUMBERS'S & TRIM & POWER SETTING ARE NOW SHOWING. ACCOMPLISHED ACARS OPS TEST, TEST PASS REF MM 23-27-00-740-8166-010 & ACCOMPLISHED FMC OPS TEST, TEST PASS REF 34-61-00-710-801.