Service difficulty report · Valve · Boeing 757324

Difficulty date
April 16, 2015
Submitted
April 16, 2015
Operation
Air carrier
Aircraft
N75854
Make and model
Boeing 757324
Aircraft serial
32813
Aircraft time
41,905 hours, 14,253 cycles
Part
Valve
Part number
32143044
Condition
Unserviceable
Location
Bleed Air Sys
Stage of operation
CR
How discovered
O
Nature of condition
M
Precautionary procedure
A

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

What was found

RIGHT ENG OVERHEAT PERFORMED CHECKLIST & LIGHT WENT OUT. HAD A PNEUMATIC DUCT SURGE PRIOR TO THIS MSG & THE STATUS STRUT OVERHEAT MSG. TROUBLE SHOT IAW FIM26-12-00, FOUND POSSIBLE LEAK DOWNSTREAM OF HPSOV. LOCKED HPSOV IN CLOSED POSITION IAW MEL 3611R. REF NR 4897732 & 44.0008 FOR W/P FAN AIR VLV & PRE-COOLER CONTROL VLV REPLACED. OPERATIONS LEAK CHECKED OK.