{"data":{"id":"us/14-cfr-121.281","jurisdiction":"us","citation":"14 CFR 121.281","heading":"Fuel system independence.","body":"(a) Each airplane fuel system must be arranged so that the failure of any one component does not result in the irrecoverable loss of power of more than one engine.\n(b) A separate fuel tank need not be provided for each engine if the certificate holder shows that the fuel system incorporates features that provide equivalent safety.","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 J—Special Airworthiness Requirements"],"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":"1e18a12974beea4f315c5adf6d8e41f46d4ab57e32bf1d7f8bf19d4ad92f74ae","source_id":"us-cfr","stale":true,"prev":"us/14-cfr-121.279","next":"us/14-cfr-121.283"},"notice":"GroundRules: Original legal text. Not legal advice."}