Service difficulty report · Start Valve · Boeing 767322

Difficulty date
June 10, 2011
Submitted
June 15, 2011
Operation
Air carrier
Aircraft
N651UA
Make and model
Boeing 767322
Aircraft serial
25389
Aircraft time
83,382 hours, 13,323 cycles
Engine
Pwa PW4060
Part
Start Valve
Part number
S332T00213
Part serial
746C
Condition
Failed
Location
Rt Engine
Stage of operation
IN
How discovered
V
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

RIGHT ENGINE START VALVE LIGHT DID NOT EXTINGUISH WHEN START VALVE CLOSED. CYCLED CIRCUIT BREAKER D20. DURING NEXT START ATTEMPT, VALVE LIGHT CAME ON BUT NO DUCT PRESSURE DROP. OBSERVED & N2 ROTATION. REPLACED NR 2 ENG STARTER AND START VALVE. OPERATION OF STARTER AND VALVE NORMAL.