Service difficulty report · Control Valve · Boeing 737890

Difficulty date
August 6, 2012
Submitted
August 11, 2012
Operation
Air carrier
Aircraft
N585AS
Make and model
Boeing 737890
Aircraft serial
35683
Aircraft time
18,887 hours, 5,814 cycles
Engine
Cfmint CFM567B27
Part
Control Valve
Condition
Malfunctioned
Location
Rt A/C Pack
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 ILLUMINATED DURING MASTER CAUTION RECALL. THE LIGHT EXTINGUISHED WHEN MASTER CAUTION SYS IS RESET. ACCOMPLISHED BITE TEST ON THE TEMP CONTROLLERS. FOUND NR 2 PACK THIS TEMP CONTROL VALVE LIGHT ON . RESET NR 2 CONTROLLER. SYS GROUND VERIFIED GOOD REF MM TASK 21-61-00-700-806-002. NO PACK LIGHT ON ON RECALL.