SDR AALA20150902008

Service difficulty report · Processor · Boeing 777223

Difficulty date: September 2, 2015
Submitted: September 4, 2015
Operation: Air carrier
Aircraft: N767AJ
Make and model: Boeing 777223
Aircraft serial: 33539
Aircraft time: 39,002 hours, 4,626 cycles
System (JASC): 3460 · Flight Management Computing Hardware System
Part: Processor
Condition: Failed
Location: Lt Aims
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

DURING CRUISE, BOTH FLIGHT MANAGEMENT COMPUTERS LOST ALL DATA. AIR INTERRUPT, EMERGENCY DECLARED, LANDING UNEVENTFUL. THE CORE PROCESSOR MODULE & STANDARD IN LT AIMS WAS REPLACED IAW AMM 31-41-05. SOFTWARE INSTALLED & INSTALLATION TEST ACCOMPLISHED IAW AMM 31-41-05. INSTALLATION TEST PASSED.