WASHINGTON, Nov 2 (Reuters) - The U.S. National Transportation Safety Board said on Sunday it is sending a team to investigate an October 29 close call between a Southwest Airlines LUV.N jet and helicopter near Cleveland International Airport in Ohio.

The NTSB said the two aircraft experienced a loss of separation - meaning they came closer to each other than the required minimum safe distance - when Southwest Flight 1333 was making its final approach on a flight from Baltimore. This prompted the Southwest pilot to abort the landing. Southwest said the Boeing 737 BA.N landed safely a short time later.

A mid-air collision between an American Airlines AAL.O regional jet and a U.S. Army helicopter on January 29 killed 67 people near Ronald Reagan Washington National Airport outside the U.S. capital and caused alarm about close calls between commercial airplanes and helicopters.

(Reporting by David Shepardson; Editing by Will Dunham)

((David.Shepardson@thomsonreuters.com; 2028988324;))