Service difficulty report · Actuator · Boeing 737990ER

Difficulty date
April 1, 2017
Submitted
April 4, 2017
Operation
Air carrier
Aircraft
N440AS
Make and model
Boeing 737990ER
Aircraft serial
41705
Aircraft time
13,685 hours, 4,553 cycles
Part
Actuator
Part number
676000141
Part serial
676000141073
Condition
Failed
Location
Ram Air Door
Part time
12,446 hours, 4,169 cycles
Stage of operation
CR
How discovered
O
Nature of condition
J
Precautionary procedure
K

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 CONTINUOUSLY IN FLIGHT. GROUNDED - YES. REMOVED AND REPLACED RIGHT RAM AIR INLET ACTUATOR, REF AMM 21-51-21. INSTALLED NEW RAM AIR EXHAUST ACTUATOR, REF AMM 21-51-27-400-801. NO FAULTS ON SRADA. ACCOMPLISHED PACK/ZONE TEMP CONTROLLER BITE TEST, REF AMM 21-61-00-700-806-002, NO FAULTS.