Service difficulty report · Control Unit · Boeing 767322

Difficulty date
December 8, 2010
Submitted
December 10, 2010
Operation
Air carrier
Aircraft
N651UA
Make and model
Boeing 767322
Aircraft serial
25389
Aircraft time
81,128 hours, 13,009 cycles
Engine
Pwa PW4060
Part
Control Unit
Part number
734285D
Part serial
80
Condition
Faulty
Location
Position 1
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

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

What was found

RIGHT AND LEFT UTILITY BUSSES WILL NOT COME ON LINE AND A-C WILL NOT TAKE GROUND POWER. REPLACED BUSS POWER CONTROL UNIT IAW MM. OPS CKS NORMAL. BOTH UTILITY BUSSES ON LINE AND A-C WILL ACCEPT GROUND POWER.