Service difficulty report · Controller · Boeing 777222

Difficulty date
May 28, 2008
Submitted
July 1, 2008
Operation
Air carrier
Aircraft
N785UA
Make and model
Boeing 777222
Aircraft serial
26954
Aircraft time
49,364 hours, 7,327 cycles
Engine
Pwa PW4090
Part
Controller
Part number
339910031
Condition
Shorted
Location
Nr 1 Engine
Stage of operation
IN
How discovered
O
Nature of condition
J
Precautionary procedure
K

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

What was found

THE "AIR SPLY L HTR" C-B ON P110 POS M16 WILL NOT RESET. SUSPECT HIGH PRESSURE CONTROLLER/FAN AIR SHORTED. REPLACED LT FAN HP CONTROLLER. RAN BOTH ENGINES. OPS OK. AC OK FOR SERVICE.