Service difficulty report · Warning Message · Boeing 737990ER

Difficulty date
November 7, 2018
Submitted
November 9, 2018
Operation
Air carrier
Aircraft
N453AS
Make and model
Boeing 737990ER
Aircraft serial
36354
Aircraft time
19,323 hours, 6,348 cycles
Part
Warning Message
Condition
False Activation
Location
Ram Air Door
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

RIGHT "RAM DOOR FULL OPEN" LIGHT REMAINS ON IN CRUISE. GROUNDED - YES. PERFORMED PACK TEMPERATURE CONTROL BITE PROCEDURE ON BOTH PZTCS REF B737-900 FIM 21-62 TASK 801. NO CURRENT OR PREVIOUS FLIGHT FAULTS LOGGED. ALSO, ACCOMPLISHED RAM AIR SYSTEM OPERATIONAL TEST REF B737-900 AMM 21-51-00-730-801. NO RED FAULT LIGHTS OBSERVED ON INLET AND EXIT SRADAS. TEST- OPS. NORMAL. NO FAULTS NOTED.