Service difficulty report · Valve · Boeing 757224

Difficulty date
December 11, 2011
Submitted
December 12, 2011
Operation
Air carrier
Aircraft
N12114
Make and model
Boeing 757224
Aircraft serial
27556
Aircraft time
70,228 hours, 14,771 cycles
Part
Valve
Part number
32143069
Part serial
59364
Condition
Inoperative
Location
Bleed Air Sys
Part time
61,196 hours, 13,245 cycles
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

ON INIT CLIMB LEFT PACK OFF LT AND EICAS AND LEFT BLEED OFF LT AND EICAS ILLUM LT DUCT PRESS WAS 0. REF N/R 459762 & 4539761 FOR R&R OF 450 & 390 DEG SENSORS. PERF LEAK CK OF 450 SENSE LINE AND RFCC FLEX HOSE, NO LEAKS NOTED. SUSPECT BAD PRSOV R&R SAME AS PER MM 36-11-09 RAN ENG AT ALL PWR SETTINGS & BLEED CONFIGURATIONS NO DEFECTS NOTED. ROTABLE PARTS CHANGE WAS INDICATED - TT # 1490102 SN OFF 09364 VALVE, PNEU, PR OFF 19-3611-9-0004 9364 ON 19-3611-9-0004 1201.