Service difficulty report · Generator · Boeing 777222

Difficulty date
June 28, 2010
Submitted
June 30, 2010
Operation
Air carrier
Aircraft
N780UA
Make and model
Boeing 777222
Aircraft serial
26944
Aircraft time
56,356 hours, 10,261 cycles
Engine
Pwa PW4077
Part
Generator
Part number
756589A
Part serial
366
Condition
Faulty
Location
Apu
Stage of operation
NR
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

ELEC GEN OFF APU EICAS. TRIED NEW APU GEN CONTROL UNIT, NO HELP. NO VOLTS OR FREQS SHOWS IN ELECTRIC PAGE. REPLACED APU GEN, OPS CHECKS OKAY.