As details emerge about the incident that blew a hole in an Alaska Airlines Boeing 737 MAX 9 midflight last week, the region’s aviation legal experts are raising questions about quick, $1,500 cash payments the airline provided passengers aboard the near-catastrophic plane trip. Twenty minutes after Flight 1282 took off from Portland last week, a piece of fuselage broke loose, opening a significant hole in the side of the aircraft and tearing the shirt off one teenager sitting nearby. Several passengers were treated for nonlife-threatening injuries after the plane landed safely back in Portland…