Service difficulty report · Control Valve · Boeing 737890

Difficulty date
February 24, 2013
Submitted
February 26, 2013
Operation
Air carrier
Aircraft
N513AS
Make and model
Boeing 737890
Aircraft serial
35192
Aircraft time
17,000 hours, 5,357 cycles
Part
Control Valve
Part number
3989083
Part serial
11208
Condition
Leaking
Location
A/C Pack
Part time
17,008 hours, 5,360 cycles
Stage of operation
TX
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

RIGHT PACK LIGHT ILLUMINATED DURING RECALL. ACFT GROUNDED. CONFIRMED FAULT, NR 2 TEMP CONTROLLER LOGGED THIS PACK TCV. ACCOMPLISHED FIM 21-62 TASK 831 RT TEMP CONTROL VALVE - FAULT ISOLATION. FOUND TCV (V141) LOOKING OVERHEATED AND LEAKING OIL. REPLACED TCV (V141) REF AMM 21-61-21, OPS CHECK GOOD ON GROUND.