Service difficulty report · Shutoff Valve · Boeing 767322

Difficulty date
January 13, 2011
Submitted
January 20, 2011
Operation
Air carrier
Aircraft
N643UA
Make and model
Boeing 767322
Aircraft serial
25093
Aircraft time
85,393 hours, 13,617 cycles
Engine
Pwa PW4060
Part
Shutoff Valve
Part number
79027013
Part serial
113
Condition
Faulty
Location
Nr 2
Stage of operation
TO
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

ON TAKEOFF HPSOV RT ENGINE EICAS. HPSOV REPLACED UNDER PTT SEQUENCE NR 3936001. ACCOMPLISHED HIGH POWER RUN PER JRH. BLEED LIGHT & EICAS RIGHT BLEED MSG PRESENT. TROUBLESHOT FURTHER AND REPLACED RIGHT BLEED CARD. 2ND HIGH PWR RUN ACCMP AS PER JRH. SAME INDICATIONS AS FIRST RUN. REF SVC TIP 36-10-00 P10A PARAGRAPH 2B. THIS IS NORMAL OPS FOR THIS FLEET AT THIS PHASE OF FLT. DURING SECOND RUN WITH ENG BLEEDS ON AND PACKS ON NO BLEED OR EICAS MESSAGE PRESENT. WITH PACKS OFF BLEED AND EICAS MSG PRESENT. AS PER SVC TIP THIS IS A NORMAL CONDITION AS NO BLEED DEMAND PRESENT. REPLACED HPSOV IAW AMM.