Service difficulty report · Valve · Boeing 767322

Difficulty date
November 23, 2008
Submitted
December 5, 2008
Operation
Air carrier
Aircraft
N665UA
Make and model
Boeing 767322
Aircraft serial
29237
Aircraft time
36,606 hours, 10,283 cycles
Engine
Pwa PW4056
Part
Valve
Part number
79027013
Condition
Failed
Location
Lt Engine
Stage of operation
IN
How discovered
9
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

LEFT ENG HPSOV ON MOMENTARILY DURING DESCENT. PER FLT CREW, CAME ON WHEN PWR PULLED TO IDLE FOR DESCENT AND EXTINGUISHED AFTER APPROX 1 MIN. FOUND HPSOV BAD ON HEALTH CHECK. REPLACED HPSOV. OPS AND LEAK CHECK OKAY. NO FAULTS OR MESSAGES.