SDR UALA2011053102609

Service difficulty report · Shutoff Valve · Boeing 767322

Difficulty date: May 30, 2011
Submitted: June 15, 2011
Operation: Air carrier
Aircraft: N643UA
Make and model: Boeing 767322
Aircraft serial: 25093
Aircraft time: 86,767 hours, 13,826 cycles
Engine: Pwa PW4060
System (JASC): 3610 · Pneumatic Distribution System
Part: Shutoff Valve
Part number: 79027013
Part serial: 510
Condition: Faulty
Location: Rt Bleed Sys
Stage of operation: TX
How discovered: O
Nature of condition: J
Precautionary procedure: D

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

What was found

RT ENG (BLEED) OFF LIGHT ON & R ENG BLEED OFF EICAS MSG, WITH ENG RUNNING, ENG BLEED SW ON, L & R ISOL VLVS CLSD, AC PACK SELECTED ON, & DUCT PSI IS ZERO. OFF LIGHT STAYS ON WHEN N1 IS ABOVE 41 PERCENT. REPLACED PRV AND RESET HP VALVE BLEED OPS NORMAL.