Service difficulty report · Warning Light · Boeing 737990ER

Difficulty date
April 21, 2021
Submitted
April 26, 2021
Operation
Air carrier
Aircraft
N468AS
Make and model
Boeing 737990ER
Aircraft serial
41735
Aircraft time
25,457 hours, 8,194 cycles
Part
Warning Light
Condition
False Activation
Location
Cockpit Temp
Stage of operation
NR
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 TEMP LIGHT ILLUMINATED ON RECALL AND RESETS WITH PUSH OF MASTER CAUTION. GROUNDED - YES. REF B737-900 FIM 21-62 TASK 832, ZONE TEMP CONTROLLER #2 SHOWS FLIGHT DECK TRIM VALVE FAULT WHEN 'BIT' & 'PREV FLT' PRESSED, FAULT UNLATCHED & CLEARED WHEN 'VERIFY' PRESSED'. RAN BITE CHECK AGAIN AND NO FAULTS SHOWED THIS TIME. PER FIM THIS IS AN INTERMITTENT FAULT.