Service difficulty report · Shutoff Valve · Boeing 757222

Difficulty date
December 6, 2012
Submitted
December 20, 2012
Operation
Air carrier
Aircraft
N552UA
Make and model
Boeing 757222
Aircraft serial
26641
Aircraft time
78,942 hours, 22,794 cycles
Engine
Pwa PW2037
Part
Shutoff Valve
Part number
32144882
Part serial
1125C
Condition
Faulty
Location
Bleed Air Sys
Stage of operation
CR
How discovered
O
Nature of condition
O
Precautionary procedure
A

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

What was found

LEFT ENGINE BLD OFF LIGHT ON WHEN LEFT ENG HEAT SWITCHED TO ON POSITION. REPLACED PRSOV PER MM AND AIR SUPPLY OVERTEMP SWITCH.