Service difficulty report · Warning System · Boeing 737990ER

Difficulty date
February 15, 2019
Submitted
February 20, 2019
Operation
Air carrier
Aircraft
N494AS
Make and model
Boeing 737990ER
Aircraft serial
41729
Aircraft time
12,122 hours, 3,948 cycles
Part
Warning System
Condition
False Activation
Location
Cabi Temp
Stage of operation
NR
How discovered
O
Nature of condition
N
Precautionary procedure
K

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

What was found

ZONE TEMP OVERHEAD LIGHT ILLUMINATED ON RECALL. CONT CAB. GROUNDED - YES. RELEASED MEL 21-21G PRIMARY FLIGHT DECK TEMP CONTROLLER INOP. PERFORMED PACK FLOW TEMP CONTROLLER BITE TEST REF MM 21-61-00. NO FAULTS FOUNDS. ZONE TMP LIGHT REMAINS EXTINGUISHED WITH RECALL. NO 60 DAY HISTORY.