Service difficulty report · Controller · Boeing 777222

Difficulty date
December 15, 2009
Submitted
December 21, 2009
Operation
Air carrier
Aircraft
N783UA
Make and model
Boeing 777222
Aircraft serial
26950
Aircraft time
56,841 hours, 8,266 cycles
Engine
Pwa PW40903
Part
Controller
Part number
339910230
Part serial
777
Condition
Faulty
Location
Bleed System
Stage of operation
NR
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

BLEED PRSOV R RT ENG BLEED PRESSURE REGULATING SHUTOFF VALVE (PRSOV) FAILED OPEN OR CLOSED OR RT AIR SUPPLY AND CABIN PRESSURE CONTROLLER FAILURE. STATUS MSG-3610380 LATCHD ER MODE REMOVED AND REPLACE THE FOLLOWING NR 2 ENG PRSOV, PRSOV CONTROLLER AND HPSOV. OPS CHECK ON ENG RUNS GOOD. ALL PRESSURE NORMAL.