Service difficulty report · Regulator · Boeing 757222

Difficulty date
August 15, 2009
Submitted
September 2, 2009
Operation
Air carrier
Aircraft
N548UA
Make and model
Boeing 757222
Aircraft serial
25396
Aircraft time
66,972 hours, 19,351 cycles
Engine
Pwa PW2037
Part
Regulator
Part number
S212N1023
Part serial
43
Condition
Faulty
Location
Lt Engine
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

L ENG BLEED WON'T CLOSE AFTER ENG START. REPLACED PRSOV REGULATOR, L ENG BLEED OFF LIGHT ILLUMINATED WITH PRSOV IN CLOSED POSITION.