Service difficulty report · Warning Light · Boeing 737990ER

Difficulty date
August 22, 2017
Submitted
September 6, 2017
Operation
Air carrier
Aircraft
N440AS
Make and model
Boeing 737990ER
Aircraft serial
41705
Aircraft time
15,189 hours, 5,032 cycles
Part
Warning Light
Condition
False Activation
Location
Lt Ram Air
Stage of operation
CR
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

DURING CRUISE AT FL350, THE LEFT RAM DOOR FULL OPEN ANNUNCIATOR CAME ON AND REMAINED ON. ACFT GROUNDED. LT PACK ZONE TEMP CONT BITE TESTED OK IAW FIM 21-62-801. OPENED AND CLOSED TWO CIRCUIT BREAKERS ON P6-4 FOR ACTUATOR STOWAGE. PERFORMED STEPS 1-6 ON LEFT PACK OF TSR AND FOUND NO FAULTS AT THIS TIME.