Service difficulty report · Warning Light · Boeing 737990ER

Difficulty date
April 19, 2016
Submitted
April 21, 2016
Operation
Air carrier
Aircraft
N453AS
Make and model
Boeing 737990ER
Aircraft serial
36354
Aircraft time
9,115 hours, 2,963 cycles
Part
Warning Light
Condition
False Activation
Location
Ram Air
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

RIGHT RAM AIR FULL OPEN LIGHT WILL NOT EXTINGUISH. ACFT GROUNDED. ACCOMPLISHED RAM DOOR FULL OPEN LIGHT STAYS ON AIRPLANE IN THE AIR-FAULT ISOLATION, REF FIM 21-51, TASK 803. PERFORMED PACK/ZONE TEMP CONTROLLER BITE TEST, BOTH NR 1 AND NR 2 CONTROLLER PASSED, NO FAULTS NOTED, REF AMM 21-51-00-700-803. ACCOMPLISHED RAM AIR SYS OPS TEST, BOTH LT AND RT RAM AIR INLET DOORS AND RAM AIR EXHAUST ACTUATOR. OPS CHECK NORMAL. VERIFIED GREEN NO LRU FAULT LIGHTS ON BOTH INLET AND EXHAUST ACTUATOR. PERFORMED GVI OF INLET AREA, NO FOD NOTED. GROUND VERIFICATION CHECKS GOOD, BOTH RAM AIR FULL OPEN LIGHTS, OPS CHECK GOOD ON/OFF DURING TEST, REF AMM 21-51-00-730-801.