Service difficulty report · Shutoff Valve · Boeing 767322

Difficulty date
March 12, 2012
Submitted
March 30, 2012
Operation
Air carrier
Aircraft
N673UA
Make and model
Boeing 767322
Aircraft serial
29241
Aircraft time
44,051 hours, 11,476 cycles
Engine
Pwa PW4052
Part
Shutoff Valve
Part number
79027013
Part serial
113281
Condition
Faulty
Location
Bleed Air Sys
Stage of operation
CR
How discovered
O
Nature of condition
O
Precautionary procedure
O

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

What was found

RT BLEED HPSOV LIGHT ON MOMENTARILY AFTER REACHING CRUISE ALTITUDE. LIGHT OUT AND DUCT PRESSURE EVEN BETWEEN LT AND RT BLEEDS. RECENT HISTORY OF PARTS SWAPPED FROM CHRONIC LT BLEED TO THE RIGHT SIDE BLEED. HPSOV, HPSOV CONTROLLER, PRV SWAPPED ON MAR 9TH. RPL THE FOLLOWING ITEMS. RPL HPSOV PER AMM, HP CONTROLLER PER AMM, PRV PER AMM & PRV CONTROLLER PER AMM. ENGINE RUN BLEED CHECK PER JRH.