Service difficulty report · Shutoff Valve · Boeing 767322

Difficulty date
April 27, 2010
Submitted
April 28, 2010
Operation
Air carrier
Aircraft
N664UA
Make and model
Boeing 767322
Aircraft serial
29236
Aircraft time
41,573 hours, 11,531 cycles
Engine
Pwa PW4052
Part
Shutoff Valve
Part number
79027013
Part serial
538
Condition
Inoperative
Location
Bleed Air Sys
Stage of operation
CL
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

LEFT ENG BLEED LIGHT & LEFT ENG HPSOV EICAS MSG DURING TAKEOFF CLIMB, WITH ENG BLEED SWITCH ON, & ENG RUNNING. LT & RT DUCT PSI ARE. REPLACED DEFECTIVE HPSOV. OP CHECKS NORMAL.