SDR CALA2018051701295

Service difficulty report · Fmc · Boeing 757224

Difficulty date: May 16, 2018
Submitted: May 17, 2018
Operation: Air carrier
Aircraft: N67134
Make and model: Boeing 757224
Aircraft serial: 29283
Aircraft time: 76,383 hours, 16,431 cycles
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Fmc
Condition: Faulted
Location: Left
Stage of operation: CR
How discovered: O
Nature of condition: J
Precautionary procedure: A

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

What was found

AMBER SPD LIM INDICATION ON BOTH ADI. VNAV WILLNOT ENGAGE. PERFORMED INIT, DUMPED, NO PROG/ALT LIMIT INFO. PERFORMED MCDP REVIEW AND TEST, NO FAULTS IAW 22-02-00-810-801-00 1. STALL WARNING TESTED IAW 27-32-00815-804-004. NO FAULTS. REMOVED AND REPLACED LEFT FMC AS A PRECAUTION. CROSSLOADED SOFTWARE AND CHANGED FF/DRAG FACTOR.IAW MM 34-61-01-024-001-002, 34-61-01-024-005-002, 34-61-00-342-009-004, AND 34-61-00-342-020-004