LOT is demanding compensation of no less than 1 billion zlotys ($252.76 million)
The lawsuit was preceded by months of settlement negotiations that did not lead to an agreement, PAP reported.
LOT spokesperson Krzysztof Moczulski confirmed to Reuters that a lawsuit has been filed but did not provide any additional information.
737 MAX aircraft was grounded worldwide in 2019 following two deadly crashes.
($1 = 3.9563 zlotys)