{"data":{"id":"us/14-cfr-121.261","jurisdiction":"us","citation":"14 CFR 121.261","heading":"Vent and drain lines.","body":"All vent and drain lines and their fittings, that are located in a designated fire zone must, if they carry flammable fluids or gases, comply with § 121.259, if the Administrator finds that the rupture or breakage of any vent or drain line may result in a fire hazard.","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":"7243009d4b2f03f29e01b7d87b5f3a3f6d58ad9a7d204f05394709a08a55221b","source_id":"us-cfr","stale":true,"prev":"us/14-cfr-121.259","next":"us/14-cfr-121.263"},"notice":"GroundRules: Original legal text. Not legal advice."}