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 ) 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 ( LUV ) pilot to abort the landing. Southwest ( LUV )

said the Boeing 737 landed safely a short time later.

A mid-air collision between an American Airlines ( AAL )

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.