Service difficulty report · Control Valve · Boeing 737890

Difficulty date
September 26, 2015
Submitted
September 29, 2015
Operation
Air carrier
Aircraft
N583AS
Make and model
Boeing 737890
Aircraft serial
35681
Aircraft time
31,447 hours, 9,312 cycles
Part
Control Valve
Part number
3989085
Part serial
13608
Condition
Malfunctioned
Location
Temp
Part time
19,568 hours, 6,390 cycles
Stage of operation
NR
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

FWD CABINE ZONE TEMP LIGHT ILLUMINATES ON RECALL AND EXTINGUISHES WITH MASTER CAUTION RESET. ACFT GROUNDED. ACCOMPLISH BITE FOUND PACK TCV FAULT ON ZONE TEMP CONTROLLER 1 REF AMM 21-61-00. R & R TEMP CONTROL VALVE. OPS CK, BITE CHECK, LEAK CK OK, REF MM 21-51-10.