SDR 2006UALA01125

Service difficulty report · Warning System · Boeing 767322

Difficulty date: June 6, 2006
Submitted: June 13, 2006
Operation: Air carrier
Aircraft: N643UA
Make and model: Boeing 767322
Aircraft serial: 25093
Aircraft time: 65,323 hours, 10,544 cycles
Engine: Pwa PW4060
System (JASC): 3620 · Pneumatic Indicating System
Part: Warning System
Condition: Activated
Location: Cockpit
Stage of operation: DE
How discovered: O
Nature of condition: J
Precautionary procedure: K

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

What was found

LT ENG BLEED LIGHT & LT ENG PRV EICAS MSG DURING DESCENT. LEFT ENGINE BLEED LIGHT & LEFT ENGINE PRV EICAS MSG DURING DESCENT WITH ENGINE BLEED SWITCH ON, & ENGINE RUNNING. LEFT & RIGHT DUCT PSI ARE: LEFT 5 PSI, RIGHT 30 PSI. PERFORMED BLEED AIR BITE TEST OK. CHECKED PRV AND HPSOV. NO DAMAGE FOUND. VALVE OPS NORMAL. CHECKED PRESSURE SENSE LINES AND FITTINGS. FOUND OK. CLEANED PRC ELEC. PLUGS. PERFORMED ENGINE RUN WITH CREW. ALL INDICATION NORMAL. LH DUCT PRESSURE OK. NO HISTORY PRSENT. A/C OK FOR SERVICE