Service difficulty report · Seal · Boeing 737322

Difficulty date
March 15, 1999
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N339UA
Make and model
Boeing 737322
Aircraft serial
24243
Engine
Ge CFM56*
Part
Seal
Condition
Leaking
Location
Vsv Actuator
Component
Arkwin · 1211175011
Stage of operation
NR
Nature of condition
K
Precautionary procedure
A

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

What was found

FUEL LEAKING OUT OF DRAIN. *S/D* FUEL LEAKAGE FOUND AT NUMBER 1 ENGINE LEFT VSV ACTUATOR SEAL AND SHROUD DRAIN WITH ENGINE OFF. THE VARIABLE STATOR VANE (VSV) ACTUATOR SEALS SOMETIMES TAKE A STATIC SET CAUSING SLIGHT LEAKAGE BETWEEN THE ACTUATOR PISTON AND SEALS. ONCE THE ACTUATOR IS CYCLED, THE SEALS RESET AND NO LEAKAGE IS DETECTED. ACCOMPLISHED AN ENGINE RUN, NO LEAKAGE DETECTED. OPS CHECK OK.