Service difficulty report · Pilot Valve · Boeing 757230

Difficulty date
February 9, 2021
Submitted
February 11, 2021
Operation
Air carrier
Aircraft
N888LT
Make and model
Boeing 757230
Aircraft serial
25441
Aircraft time
73,634 hours, 24,088 cycles
Engine
Pwa PW2037
Engine time
75,977 hours, 25,646 cycles
Part
Pilot Valve
Part number
33990047
Part serial
8610
Condition
Faulted
Location
Lt Engine
Stage of operation
DE
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

DISCREPANCY - L ENG BLEED SURGES ON DESCENT CORRECTIVE ACTION - REMOVED AND REPLACED L ENG HS PILOT IAW AMM 36-11-08. LEAK CHECK AND OPS CHECK OK.