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Boeing faces a potentially crippling strike in the Seattle region, depending on how 33,000 workers vote Thursday on a new contract that has angered many employees despite solid wage gains.

Led by new CEO Kelly Ortberg, the embattled aviation giant had hoped a 25 percent wage hike over four years and a commitment to invest in the Puget Sound region would avert a strike at a time when Boeing remains financially weak after myriad crises.

But while the preliminary contract won an endorsement from leaders of the International Association of Machinists and Aerospace Workers (IAM) District 751, the response from much of the rank-and-file has been harsh.

Broadcast reports in the Seattle region have featured footage of line workers who hold daily rallies on the factory floor and call the wage hikes inadequate in light of inflation.

A Sunday posting on the IAM's Facebook page announcing the deal was removed after drawing hundreds of comments, with many condemning the deal or calling for a strike.

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