Service difficulty report · Shutoff Valve · Boeing 767322

Difficulty date
July 17, 2012
Submitted
July 26, 2012
Operation
Air carrier
Aircraft
N646UA
Make and model
Boeing 767322
Aircraft serial
25283
Aircraft time
88,687 hours, 14,198 cycles
Engine
Pwa PW4060
Part
Shutoff Valve
Part number
77328915
Part serial
114
Condition
Failed
Location
Bleed Sys
Stage of operation
NR
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

LT ENGINE HPSOV EICAS MSG. ACCOMPLISHED PNEUMATIC HEALTH CHECK OF THE HPSOV-HPC SYSTEM. AILED ITEM C (22) & (27). RESISTANCE READINGS NOT WITHIN LIMITS. HPSOV. REPLACED HIGH PRESSURE CONTROLLER PER MM. PERFORMED ENGINE RUN, OPS CHECKED NORMAL. ACCOMPLISHED ENGINE AIR BLEED OPERATIONAL CHECK.