Service difficulty report · Valve · Boeing 757222

Difficulty date
April 9, 2010
Submitted
May 13, 2010
Operation
Air carrier
Aircraft
N546UA
Make and model
Boeing 757222
Aircraft serial
25367
Aircraft time
68,540 hours, 19,947 cycles
Engine
Pwa PW2037
Part
Valve
Part number
S212N10225
Part serial
159
Condition
Faulty
Location
Nr 1
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

LEFT ENG BLEED OFF. CONFIRM OFF LIGHT ILLUMINATES IN OFF POSITION. ACP'D PNEUMATIC HEALTH CHECK ON THE FOLLOWING COMPONENTS ON NR 1 ENG. (HPC- HPSOV), (PRC-PRSOV), FAMV. ALL COMPONENTS PASSED, TEST EXCEPT FAMV WHICH FAILED REFERENCE PRESS. REPLACED FAN AIR MODULATING VLV.