Service difficulty report · Circuit Card · Boeing 777222

Difficulty date
March 9, 2008
Submitted
March 12, 2008
Operation
Air carrier
Aircraft
N787UA
Make and model
Boeing 777222
Aircraft serial
26939
Aircraft time
47,392 hours, 7,301 cycles
Engine
Pwa PW4090
Part
Circuit Card
Part number
285W0020101
Condition
Malfunctioned
Location
Power Supply
Stage of operation
CR
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

AIRCRAFT HAS NUMEROUS STATUS MESSAGES ALL RELATED TO LOSS OF POWER DURING FLIGHT. AFTER EXTENSIVE TROUBLE SHOOTING FOUND POWER SUPPLY CARD FAULTY. REPLACED A18 POWER SUPPLY CARD MSG CLEARED. AC OK FOR SERVICE.