Service difficulty report · Control Valve · Boeing 737890

Difficulty date
October 12, 2011
Submitted
October 17, 2011
Operation
Air carrier
Aircraft
N593AS
Make and model
Boeing 737890
Aircraft serial
35107
Aircraft time
13,550 hours, 4,390 cycles
Part
Control Valve
Part number
32895625
Part serial
11085
Condition
Defective
Location
Bleed Air Sys
Part time
13,399 hours, 4,298 cycles
Stage of operation
CR
How discovered
O
Nature of condition
O
Precautionary procedure
K

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

What was found

20PSI DUCT PRESS SPLIT AT FL370 (R 22PSI L 42PSI). REPLACED NR 2 ENGINE PRECOOLER CONTROL VALVE REF MM 36 12 02 000/400 801.