Boeing and its engineering union will resume bargaining Tuesday at a hotel in Seattle, with two federal mediators on hand to offer guidance.

The pair from the Federal Mediation and Conciliation Service (FMCS) will attend as observers, rather than in a formally structured mediation role.

Last week Boeing requested formal mediation, saying the talks had stalled. Pressing for a neutral, out-of-the-way site to encourage compromise, the company then suggested moving the talks to Washington, D.C.

Officials of the Society of Professional Engineering Employees in Aerospace (SPEEA), representing about 23,000 engineers and technical staff, rejected the shift of venue.

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On Saturday, union officials agreed to let FMCS mediators assist in the bargaining process, but only in an advisory role.

The talks will alternate venues chosen by the two sides, and are expected to continue Wednesday at SPEEA’s headquarters in Tukwila.

Dominic Gates: (206) 464-2963 or dgates@seattletimes.com