{"data":{"id":"us/14-cfr-121.507","jurisdiction":"us","citation":"14 CFR 121.507","heading":"Flight time limitations: Three pilot crews: airplanes.","body":"(a) No certificate holder conducting supplemental operations may schedule a pilot—\n(1) For flight deck duty in an airplane that has a crew of three pilots for more than eight hours in any 24 consecutive hours; or\n(2) To be aloft in an airplane that has a crew of three pilot for more than 12 hours in any 24 consecutive hours.\n(b) No pilot of an airplane that has a crew of three pilots may be on duty for more than 18 hours in any 24 consecutive hours.","path":["Title 14—Aeronautics and Space","CHAPTER I—FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","SUBCHAPTER G—AIR CARRIERS AND OPERATORS FOR COMPENSATION OR HIRE: CERTIFICATION AND OPERATIONS","PART 121—OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS","Subpart S—Flight Time Limitations: Supplemental Operations"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-14.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:20Z","sha256":"96b07f1158e275349ff076c3a3d9f8561af78131dc550b6bf118ea70b667f56a","source_id":"us-cfr","stale":true,"prev":"us/14-cfr-121.505","next":"us/14-cfr-121.509"},"notice":"GroundRules: Original legal text. Not legal advice."}