2024 14 CFR 135.373 – Part 25 transport category airplanes with four or more engines: Reciprocating engine powered: En route limitations: Two engines inoperative

2023 14 CFR 135.373 – Part 25 transport category airplanes with four or more engines: Reciprocating engine powered: En route limitations: Two engines inoperative

2022 14 CFR 135.373 – Part 25 transport category airplanes with four or more engines: Reciprocating engine powered: En route limitations: Two engines inoperative

2021 14 CFR 135.373 – Part 25 transport category airplanes with four or more engines: Reciprocating engine powered: En route limitations: Two engines inoperative

2020 14 CFR 135.373 – Part 25 transport category airplanes with four or more engines: Reciprocating engine powered: En route limitations: Two engines inoperative

2019 14 CFR 135.373 – Part 25 transport category airplanes with four or more engines: Reciprocating engine powered: En route limitations: Two engines inoperative

2016 14 CFR 135.373 – Part 25 transport category airplanes with four or more engines: Reciprocating engine powered: En route limitations: Two engines inoperative

2015 14 CFR 135.373 – Part 25 transport category airplanes with four or more engines: Reciprocating engine powered: En route limitations: Two engines inoperative

2014 14 CFR 135.373 – Part 25 transport category airplanes with four or more engines: Reciprocating engine powered: En route limitations: Two engines inoperative

2010 14 CFR 135.373 – Part 25 transport category airplanes with four or more engines: Reciprocating engine powered: En route limitations: Two engines inoperative

2009 14 CFR 135.373 – Part 25 transport category airplanes with four or more engines: Reciprocating engine powered: En route limitations: Two engines inoperative