Service difficulty report · Pilot Valve · Boeing 757230

Difficulty date
January 30, 2026
Submitted
February 2, 2026
Operation
Air carrier
Aircraft
N688SL
Make and model
Boeing 757230
Aircraft serial
25140
Aircraft time
107,654 hours, 27,492 cycles
Engine
Pwa PW2037
Engine time
88,307 hours, 27,916 cycles
Part
Pilot Valve
Part number
33990047
Part serial
677
Condition
Faulted
Location
Rt Engine
Stage of operation
IN
How discovered
C
Nature of condition
L
Precautionary procedure
K

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

What was found

DEFERRED RT ENG HPSOV IAW MEL 36-11-02. R & R RT ENG HIGH STAGE PILOT PER AMM 36-11-08.