{"data":{"id":"us/14-cfr-133.51","jurisdiction":"us","citation":"14 CFR 133.51","heading":"Airworthiness certification.","body":"A Rotorcraft External-Load Operator Certificate is a current and valid airworthiness certificate for each rotorcraft type certificated under part 27 or 29 of this chapter (or their predecessor parts) and listed by registration number on a list attached to the certificate, when the rotorcraft is being used in operations conducted under this part.","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 133—ROTORCRAFT EXTERNAL-LOAD OPERATIONS","Subpart D—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":"fac09510014193e4c637bcec58981f1509c09eca5d21fee316b7e688d94c410f","source_id":"us-cfr","stale":true,"prev":"us/14-cfr-133.49","next":"us/14-cfr-special-federal-aviation-regulation-no.-50-2-part-135"},"notice":"GroundRules: Original legal text. Not legal advice."}