Service difficulty report · Pilot Valve · Boeing 757230

Difficulty date
July 15, 2020
Submitted
July 29, 2020
Operation
Air carrier
Aircraft
N688SL
Make and model
Boeing 757230
Aircraft serial
25140
Aircraft time
94,562 hours, 24,372 cycles
Engine
Pwa PW2040
Engine time
75,159 hours, 27,068 cycles
Part
Pilot Valve
Part number
33990047
Part serial
9150
Condition
Defective
Location
Lt Engine
Stage of operation
TX
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

LH ENG HP PILOT WAS REPLACED DUE TO LOW BLEED PRESSURE AT IDLE POWER