Service difficulty report · Controller · Boeing 767322

Difficulty date
January 26, 2011
Submitted
February 7, 2011
Operation
Air carrier
Aircraft
N668UA
Make and model
Boeing 767322
Aircraft serial
30024
Aircraft time
42,165 hours, 11,369 cycles
Engine
Pwa PW4056
Part
Controller
Part number
7927558
Part serial
113
Condition
Faulty
Location
Bleed Air Sys
Stage of operation
DE
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

LT ENG BLEED LIGHT AND HPSOV EICAS ON MOMENTARILY ON DESCENT AS THROTTLES MOVED TO IDLE. REPLACED THE NR1 ENGINE HIGH PRESSURE CONTROLLER IAW MM. OPS CHECKED ARE NORMAL.