Service difficulty report · Valve · Boeing 767322

Difficulty date
April 22, 2009
Submitted
April 24, 2009
Operation
Air carrier
Aircraft
N671UA
Make and model
Boeing 767322
Aircraft serial
30026
Aircraft time
34,764 hours, 9,267 cycles
Engine
Pwa PW4056
Part
Valve
Part number
79027013
Part serial
419
Condition
Failed
Location
Bleed Air Sys
Stage of operation
TO
How discovered
O
Nature of condition
J
Precautionary procedure
C

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

What was found

L ENG PRV EICAS MSG ON T/O ROLL. REJECTED T/O AT 75KTS. REPLACED PRV.