Service difficulty report · Control Valve · Boeing 737890

Difficulty date
November 15, 2015
Submitted
November 17, 2015
Operation
Air carrier
Aircraft
N519AS
Make and model
Boeing 737890
Aircraft serial
36482
Aircraft time
26,051 hours, 7,829 cycles
Part
Control Valve
Part number
3989083
Part serial
9902
Condition
Failed
Location
A/C Bay
Part time
30,650 hours, 9,506 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

AFTER ENGINE START AND DURING AND AFTER START CHECKLIST MASTER CAUTION RESET, CONT CAB "ZONE TEMP" LIGHT ILLUMINATED. THE "ZONE TEMP" LIGHT EXTINGUISHED UPON MASTER CAUTION RESET. ACFT GROUNDED. HAD "TRIM VALVE FLT DECK" FAULT. R & R V143, TRIM VALVE FOR CONTROL CABIN IAW AMM 21-61-21-000-801 AND 21-61-21-400-801, LEAK AND OPS CHECK GOOD.