Service difficulty report · Computer · Boeing 777222

Difficulty date
August 31, 2012
Submitted
September 8, 2012
Operation
Air carrier
Aircraft
N771UA
Make and model
Boeing 777222
Aircraft serial
26932
Aircraft time
67,920 hours, 12,299 cycles
Engine
Pwa PW4077
Part
Computer
Condition
Failed
Location
Cockpit
Stage of operation
NR
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

SAARU FAILURE, INERTIAL REFERENCE FAILURE, AIR DATA FAILURE OR TOTAL FAILURE OF THE LRU OR AIRPLANE TYPE MISCOMPARE. FOUND SAARU AT FAULT MSG 34-30700 HARD DEFAULTED TO SAARU AND REPLACED AND LOADED SOFTWARE, ALL OPS CHECKS SATISFACTORY.