Service difficulty report · Shutoff Valve · Boeing 757222

Difficulty date
July 20, 2009
Submitted
July 20, 2009
Operation
Air carrier
Aircraft
N596UA
Make and model
Boeing 757222
Aircraft serial
28749
Aircraft time
45,388 hours, 12,602 cycles
Engine
Pwa PW2037
Part
Shutoff Valve
Part number
32144882
Part serial
131
Condition
Failed
Location
Bleed Air Sys
Stage of operation
DE
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

LEFT ENG BLEED ANNUNCIATOR CYCLED ON OFF THREE TIMES. REPLACED PRSOV AND PRSOV REGULATOR. OP CHECK OKAY.