Service difficulty report · Regulator Valve · Boeing 767322

Difficulty date
May 22, 2008
Submitted
July 1, 2008
Operation
Air carrier
Aircraft
N649UA
Make and model
Boeing 767322
Aircraft serial
25286
Aircraft time
69,587 hours, 11,307 cycles
Engine
Pwa PW4060
Part
Regulator Valve
Part number
7732887810
Condition
Faulty
Location
Nr 1 Engine
Stage of operation
IN
How discovered
O
Nature of condition
W
Precautionary procedure
O

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

What was found

LEFT ENG BLEED AIR VALVE WILL NOT OPEN. DUCT PRESSURE ON LEFT SIDE IS ZERO. ADVANCED ENG POWER AND STILL NO HELP. FOUND PRESSURE REGULATING VALVE TO BE FAULTY. REPLACED PRV, RAN ENGINE OP CHECKED GOOD. AC OK FOR SERVICE.