Service difficulty report · Actuator · Boeing 737990ER

Difficulty date
July 19, 2015
Submitted
July 23, 2015
Operation
Air carrier
Aircraft
N453AS
Make and model
Boeing 737990ER
Aircraft serial
36354
Aircraft time
6,083 hours, 1,974 cycles
Part
Actuator
Part number
676000141
Part serial
676000141145
Condition
Failed
Location
Ram Air Exhaust
Part time
6,086 hours, 1,975 cycles
Stage of operation
NR
How discovered
O
Nature of condition
J
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 ON IN FLIGHT. ACFT GROUNDED. BITE CHECK OF ZONE TEMP CONTROLLER SHOWED NO FAULTS. SMART ACTUATORS BOTH HAD GREEN LIGHTS. FOUND STEP 9 (D) ON FIM 21-51/803 TO BE IN ERROR, EXHAUST LOUVERS DON'T MOVE UNTIL FLAPS UP. REF EA 900ER-21EA-15458 FOR CORRECTION TO MANUAL. OPS CHECK OF RAM DOOR SYS NORMAL. ACFT GROUND VERIFICATION SATISFACTORY. NO PRIOR HISTORY 90 DAYS. REF FIM 21-51/803, MM 21-50-00.