Service difficulty report · Circuit Card · Boeing 757222

Difficulty date
July 6, 2010
Submitted
July 6, 2010
Operation
Air carrier
Aircraft
N598UA
Make and model
Boeing 757222
Aircraft serial
28751
Aircraft time
45,591 hours, 12,673 cycles
Engine
Pwa PW2037
Part
Circuit Card
Part number
285T003117
Part serial
12
Condition
Defective
Location
Weu
Stage of operation
NR
How discovered
C
Nature of condition
L
Precautionary procedure
K

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

What was found

WEU TEST FAILED WITH WARN ELEX 'B' CB CLOSED AND 'A' CB OPEN. REPLACED CARD M983, NO HELP. TRIED NEW POWER SUPPLY, NO HELP. NEEDS MORE TROUBLESHOOTING. REPLACED CARD M983, TESTS OKAY.