SDR ASAA2016102618488

Service difficulty report · Fmc · Boeing 737990ER

Difficulty date: October 26, 2016
Submitted: October 28, 2016
Operation: Air carrier
Aircraft: N457AS
Make and model: Boeing 737990ER
Aircraft serial: 36355
Aircraft time: 10,836 hours, 3,558 cycles
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Fmc
Part number: 1762000101
Part serial: 007656
Condition: Intermittent
Location: Ee Bay
Part time: 13,238 hours, 4,236 cycles
Stage of operation: TX
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

CAPTAIN'S FMC VTK CAME ON DURING TAXI-IN. ACFT GROUNDED. CONFIRMED FAULT, LT FMC INTERMITTENT. REMOVED & REPLACED THE NR 1 FMC IAW AMM TASK 34-61-02. ACCOMPLISHED FMC SOFTWARE CROSSLOAD, IAW AMM TASK 34-61-00-470-806, & FMC SOFTWARE CONFIGURATION CHECK, IAW AMM TASK 34-61-00-750-801, & FMC PERFORMANCE FACTORS (DRAG) ADJUSTMENT, IAW AMM TASK 34-61-00-800-801. GROUND FUNCTIONAL CHECK NORMAL, IAW AMM TASK 34-61-00. VERIFIED CORRECT OPS, MEDB, LDDB, DATA LINK, SW OPT, NAV DATA,