Service difficulty report · Valve · Boeing 737890

Difficulty date
March 22, 2008
Submitted
March 24, 2008
Operation
Air carrier
Aircraft
N559AS
Make and model
Boeing 737890
Aircraft serial
35178
Aircraft time
5,874 hours, 1,736 cycles
Part
Valve
Part number
3989083
Condition
Faulty
Location
A/C Pack
Stage of operation
TX
How discovered
O
Nature of condition
J
Precautionary procedure
D

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

OBSERVED FWD CONTROL CABIN ZONE TEMP ANNUNCIATION ON RECALL DURING AFTER START CHECKLIST. REPLACED CONTROL CABIN TRIM VALVE. BITE CHECK GOOD. SOAP BUBBLE TEST GOOD.