In the Matter of the

REPRESENTATION OF EMPLOYEES

of

CHALLENGE AIR CARGO

Mechanics and Related Employees

28 NMB No. 62

CASE NO. R-6552

REVOCATION OF CERTIFICATION

March 30, 2001

On March 9, 2001, Ray Benning, Director, Airline Division, International Brotherhood of Teamsters (IBT), addressed a letter to the National Mediation Board (NMB), stating "On behalf of the International Brotherhood of Teamsters (IBT), please be advised that the IBT disavows its representational rights in the above referenced case[] at Challenge Air Cargo, effective immediately."

On the basis of the above disclaimer, the NMB hereby revokes, effective March 30, 2001, the certification issued to the IBT in NMB Case No. R-6552.

By direction of the NATIONAL MEDIATION BOARD.

Stephen E. Crable

Chief of Staff