Service difficulty report · Shutoff Valve · Boeing 777222

Difficulty date
September 25, 2013
Submitted
September 27, 2013
Operation
Air carrier
Aircraft
N776UA
Make and model
Boeing 777222
Aircraft serial
26937
Aircraft time
71,767 hours, 12,607 cycles
Engine
Pwa PW4077
Part
Shutoff Valve
Part number
32153024
Part serial
15
Condition
Faulty
Location
Bleed Air Sys
Stage of operation
IN
How discovered
O
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

NR 2 ENGINE WHEN SUPPLY PRESSURE TO 19PSI, REFERENCE PRESSURE IS LESS THAN 15PSI OF HPSOV. INSTALLED WITH NEW HPSOV IAW AMM. TESTED THE HPSOV OK,