Service difficulty report · Valve · Boeing 737890

Difficulty date
March 3, 2023
Submitted
March 6, 2023
Operation
Air carrier
Aircraft
N570AS
Make and model
Boeing 737890
Aircraft serial
35185
Aircraft time
58,186 hours, 17,364 cycles
Part
Valve
Part number
3989085
Part serial
2245
Condition
Faulty
Location
Left Ecs Bay
Part time
96,896 hours, 40,983 cycles
Stage of operation
NR
How discovered
V
Nature of condition
J
Precautionary procedure
K

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

What was found

CONT CAB ZONE TEMP ILLUMINATED UPON MASTER CAUTION RECALL EXTINGUISHES ON MASTER CAUTION RESET. GROUNDED - YES. REMOVED AND REPLACED CABIN ITEM CONTROL VALVE AND OPS CHECK NORMAL REF B737-800 AMM 21-61-21/401.