As the situation stands right now, travel insurance policies likely will not provide coverage for the grounding of the Boeing 737 Max 8 planes.
Typically, in order for a grounded flight to be covered by travel insurance, it must be due to a mechanical failure of the aircraft or inclement weather. In this situation, for coverage to be available, the airlines grounding flights would need to say they have grounded the Boeing 737 Max 8 specifically due to mechanical issues.
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