SDR UALA2010112904350

Service difficulty report · Valve · Boeing 767322

Difficulty date: November 27, 2010
Submitted: December 6, 2010
Operation: Air carrier
Aircraft: N648UA
Make and model: Boeing 767322
Aircraft serial: 25285
Aircraft time: 77,388 hours, 12,492 cycles
Engine: Pwa PW4060
System (JASC): 3610 · Pneumatic Distribution System
Part: Valve
Part number: 7732887810
Part serial: 167
Condition: Faulty
Location: Pos 2
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 AND RT ENG BLEED OFF EICAS MESSAGE, WIT RUNNING, ENG BLEED SWITCH ON, LT AND RT ISOLATION VALVES CLOSED, AC PACK SELECTED ON, AND DUCT PSI IS ZERO. OFF LIGHT STAYS ON WHEN N1 IS ABOVE. REPLACED RT ENG PRSOV. OPS NORMAL.