SDR ASAA2016022115625

Service difficulty report · Computer · Boeing 737990ER

Difficulty date: February 21, 2016
Submitted: February 24, 2016
Operation: Air carrier
Aircraft: N402AS
Make and model: Boeing 737990ER
Aircraft serial: 41189
Aircraft time: 13,122 hours, 4,261 cycles
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Computer
Condition: Malfunctioned
Stage of operation: TX
How discovered: O
Nature of condition: P
Precautionary procedure: O

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

What was found

UNABLE TO RECEIVE TAKEOFF PERFORMANCE VIA ACARS. ACFT GROUNDED. PERFORMED FMC NR 1 AND NR 2 SOFTWARE CONFIGURATION CHECK REF AMM 34-61-00. FOUND OPC SOFTWARE TO BE INCORRECTLY MATCHED TO OPS, PN 556909-001, U11, SOFTWARE. INSTALLED CORRECT OPC SOFTWARE PN BCG-01T-61 TO NR 1 FMC USING LAPTOP AND CROSSLOADED SAME SOFTWARE TO NR 2 FMC REF AMM 34-61-00-470-805. VERIFIED CORRECT SOFTWARE INSTALLATION ON NR 1 AND NR 2 FMC BY CONFIGURATION CHECK REF ABOVE. OPS CHECKS GOOD REF AMM 23-27-00.