SEATTLE, Wa. (AP) – Alaska Airlines is canceling all flights on Boeing 737 Max 9 planes until Saturday while it waits for new instructions on how to inspect and fix the planes.

The airline said Wednesday that could mean canceling up to 150 flights a day.

Federal officials grounded Boeing Max 9s after a panel blew off an Alaska Airlines jet in midflight on Friday night.

Alaska and United Airlines are the only U.S. carriers affected by the grounding.

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