Service difficulty report · Valve · Boeing 737890

Difficulty date
March 25, 2016
Submitted
March 29, 2016
Operation
Air carrier
Aircraft
N508AS
Make and model
Boeing 737890
Aircraft serial
35691
Aircraft time
29,493 hours, 8,982 cycles
Part
Valve
Part number
3989083
Part serial
9171
Condition
Failed
Location
Cabin Temp
Part time
31,542 hours, 9,676 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

CABIN ZONE TEMP AMBER LIGHT ILLUMINATED ON RECALL, QRH RAN. ACFT GROUNDED. PERFORMED FIM TASK 21-62, TASK 801. ZONE TEMP CONTROLLER NR 1 FLT DECK TRIM VALVE FAIL LIGHT ILLUMINATED. R & R FLIGHT DECK TRIM VALVE IAW AMM 21-61-21. OPS CK GOOD. LEAK CHECKED GOOD. BONDING CHECKED GOOD IAW AMM 21-61-21.