SDR 2002UALA00207

Service difficulty report · Bleed Valve · Boeing 767222

Difficulty date: February 2, 2002
Submitted: March 14, 2002
Operation: Air carrier
Aircraft: N606UA
Make and model: Boeing 767222
Aircraft serial: 21867
Aircraft time: 71,640 hours, 18,214 cycles
Engine: Pwa JT9D7R4D
Engine time: 59,016 hours, 15,691 cycles
System (JASC): 7532 · Compressor Bleed Valve
Part: Bleed Valve
Condition: Out Of Rig
Location: Lt Engine
Stage of operation: CL
How discovered: O
Nature of condition: R, A
Precautionary procedure: A

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

What was found

LEFT ENGINE COMPRESSOR STALL WITH EGT PEAKING AT 698 DEGREES. ATC REPORTED FLAMES FROM REAR OF ENGINE. RETURNED TO JFK. ACCOMPLISHED THE EVBC (ENGINE VANE & BLEED CONTROL) AND 3.0 BLEED TRIM. THE 3.0 BLEED WAS FOUND OUT OF TRIM. PROBLEMS WERE ENCOUNTERED WITH AIRCRAFT WIRING FOR THE TRIM EQUIPMENT, BUT WERE RESOLVED AND THE 3.0 BLEED WAS TRIMMED.