Service difficulty report · Bleed Valve · Boeing 757222

Difficulty date
August 23, 2010
Submitted
August 23, 2010
Operation
Air carrier
Aircraft
N592UA
Make and model
Boeing 757222
Aircraft serial
28143
Aircraft time
47,560 hours, 17,675 cycles
Engine
Pwa PW2040
Engine time
61,788 hours, 21,497 cycles
Part
Bleed Valve
Condition
Failed
Location
Nr 2 Engine
Stage of operation
CL
How discovered
O
Nature of condition
R, J
Precautionary procedure
A

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

What was found

NR 2 ENG SURGE, RTFL. ACCOMPLISHED POWER ASSURANCE CHECK. NO SURGING NOTICED. EPR 1.42, N2 88.4, EGT 580, FF 14.4 COOLED ENG, SHUTDOWN AND RESTART AND ACCOMPLISHED SAME CHECK WITH THE OTHER EEC, NO CHANGE. ACCOMPLISHED 14TH STAGE BLEED SYS TEST- FAILED TEST. NO INCREASE IN TEMP OCCURRED DURING TEST. ACCOMPLISHED BORESCOPE OF THE FRONT AND REAR OF THE HPC THROUGH AP-2 AND AP-8. NO LIMITING DEFECTS FOUND. OK TO CONTINUE IN SERVICE WITHOUT LIMITATIONS.