Service difficulty report · Control Valve · Boeing 737890

Difficulty date
May 28, 2012
Submitted
May 30, 2012
Operation
Air carrier
Aircraft
N594AS
Make and model
Boeing 737890
Aircraft serial
35191
Aircraft time
16,029 hours, 5,000 cycles
Engine
Cfmint CFM567B273
Part
Control Valve
Part number
3989083
Part serial
2402
Condition
Malfunctioned
Location
Ac Bay
Part time
46,762 hours, 2,484 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 ILLUMINATED DURING RECALL. ACFT GROUNDED. REPLACED LT TEMP CONTROL VALVE IAW AMM 21-51-10-000-801 AND 21-51-10-400-801. OPS CHECK GOOD (LT CONTROLLER CALLED OUT TEMP CONTROL VALVE AND SYS HAS HISTORY) GROUND FUNCTIONAL TEST GOOD IAW AMM 21-51-10-400-801 PARA E.