Service difficulty report · Control Valve · Boeing 737890

Difficulty date
November 27, 2012
Submitted
December 4, 2012
Operation
Air carrier
Aircraft
N566AS
Make and model
Boeing 737890
Aircraft serial
35182
Aircraft time
22,749 hours, 6,986 cycles
Part
Control Valve
Part number
3989083
Part serial
10948
Condition
Malfunctioned
Location
A/C Bay
Part time
16,234 hours, 5,144 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 ON RECALL, EXTINGUISHED ON MASTER CAUTION RESET. VERIFIED TCV FAULT ON NR 1 ZONE TEMP CONTROLLER. R & R LT PACK TEMP CONTROL VALVE. REF MM 21-51-10-000-801 AND 21-51-10-400-801. LEAK & OPS CK GOOD. ACCOMP BITE TEST AND VERIFIED NO FAULTS LOGGED AT THIS TIME.