Service difficulty report · Bleed Valve · Boeing 757222

Difficulty date
March 1, 2010
Submitted
March 1, 2010
Operation
Air carrier
Aircraft
N509UA
Make and model
Boeing 757222
Aircraft serial
24763
Aircraft time
64,887 hours, 24,322 cycles
Engine
Pwa PW2037
Part
Bleed Valve
Part number
S212N10225
Part serial
10
Condition
Faulty
Location
Rt Engine
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

RT ENG BLEED, FLIGHT DIVERTED. PNEUMATIC HEALTH CK ON NR 2 ENG ON THE FOLLOWING COMPONENTS IAW MM: HPC- HPSOV, PRC-PRSOV, FAMV. DURING ACCOMPLISHMENT OF HEALTH CK ON RT HI STAGE PILOT, SOLENOID FAILED TO CLOSE WHEN PINS 1181695 AND 6 WERE ENERGIZED. R & R NR 2 ENG HI-STAGE PILOT IAW MM. RE-ACCOMPLISHED HEALTH CK, TEST GOOD. ALSO DURING HEALTH CK OF FAMV VALVE FAILED REF PRESSURE (READING WAS 24 PSI). R & R FAMV ON NR 2 ENG IAW MM. RE-ACCOMPLISHED HEALTH CK ON NEW FAMV, TEST GOOD. RAN NR 2 ENG AND BLEED INDICATIONS AT IDLE WERE 18PSI AND BLEED TURNED OFF WHEN SWITCH SELECTED TO "OFF". FOUND ALL SENSE LINES SECURED AND NONE LEAKING.