Service difficulty report · Warning Message · Boeing 737990ER

Difficulty date
April 23, 2019
Submitted
April 25, 2019
Operation
Air carrier
Aircraft
N471AS
Make and model
Boeing 737990ER
Aircraft serial
41703
Aircraft time
18,207 hours, 5,959 cycles
Part
Warning Message
Condition
False Activation
Location
Cockpit Temp
Stage of operation
TX
How discovered
O
Nature of condition
N
Precautionary procedure
O

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 DURING RECALL AFTER ENGINE START. GROUNDED - YES. PRIMARY CONT TEMP CONTROL IS INOP. ENROUTE MEL - #2 ZONE CONT LOGGED FLT DECK TCV FAULT, FAULT CLEARED & SYS OPS CKS NML REF B737-900 AMM 21-61-00.