Service difficulty report · Control Valve · Boeing 737890

Difficulty date
December 29, 2012
Submitted
December 31, 2012
Operation
Air carrier
Aircraft
N568AS
Make and model
Boeing 737890
Aircraft serial
35183
Aircraft time
22,945 hours, 7,216 cycles
Part
Control Valve
Part number
3989083
Part serial
9144
Condition
Faulted
Location
Lt A/C Pack
Part time
22,968 hours, 7,223 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

LEFT PACK LIGHT ILLUNIMATED ON RECALL. EXTINGUISHED WITH RESET. ACCOMPLISHED PACK/ ZONE TEMP CONTROLLER BITE M1442, FIM 21-62, 801. MESSAGE FAULT TCV. R & R LEFT TEMP CONTROL VALVE IAW MM 21-51-10-400-801. OPS AND LEAK CHECKED GOOD.