Service difficulty report · Actuator · Boeing 737990ER

Difficulty date
January 17, 2019
Submitted
January 29, 2019
Operation
Air carrier
Aircraft
N440AS
Make and model
Boeing 737990ER
Aircraft serial
41705
Aircraft time
20,912 hours, 6,898 cycles
Part
Actuator
Part number
676000141
Part serial
676000148686
Condition
Failed
Location
Lt Ram Air
Part time
239 hours, 73 cycles
Stage of operation
CR
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

LEFT PACK LIGHT ILLUMINATED AT CRUISE FL 360. RESET NORMALLY AS PER QRH. GROUNDED - YES. REPLACED THE LEFT RAM AIR DOOR ACTUATOR PER AMM 21-51-21. OPS CK NORMAL.