Service difficulty report · Control Valve · Boeing 737890

Difficulty date
February 23, 2019
Submitted
February 26, 2019
Operation
Air carrier
Aircraft
N585AS
Make and model
Boeing 737890
Aircraft serial
35683
Aircraft time
43,975 hours, 13,162 cycles
Part
Control Valve
Part number
3989083
Part serial
1574
Condition
Failed
Location
Left A/C Pack
Part time
79,813 hours, 34,480 cycles
Stage of operation
NR
How discovered
V
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

ON MASTER CAUTION RECALL, CONT CAB ZONE TEMP LIGHT ILLUMINATES. EXTINGUISHES ON MASTER CAUTION RESET. GROUNDED - YES. REMOVED & REPLACED TCV V143 B737-800 AMM 21-61-21 OPS CHECK NORMAL.