Union that struck Northwest gives up at Delta

The mechanic's union that waged an unsuccessful strike against Northwest Airlines in 2005 is packing up its wrenches at Delta Air Lines, Northwest's new corporate parent.

Today the National Mediation Board granted a request by the Aircraft Mechanics Fraternal Association to stop representing the former Northwest mechanics.

The union says revoking its certification is in the best interests of the Northwest workers.

Delta acquired Northwest late last year. Northwest was heavily unionized, but the only major union at Delta is its pilots.

While the unions for Northwest flight attendants and other ground workers hope to organize those workers company-wide, AMFA was given little chance of representing all Delta mechanics once the two airlines are integrated.