{"data":{"id":"us/14-cfr-33.47","jurisdiction":"us","citation":"14 CFR 33.47","heading":"Detonation test.","body":"Each engine must be tested to establish that the engine can function without detonation throughout its range of intended conditions of operation.","path":["Title 14—Aeronautics and Space","CHAPTER I—FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","SUBCHAPTER C—AIRCRAFT","PART 33—AIRWORTHINESS STANDARDS: AIRCRAFT ENGINES","Subpart D—Block Tests; Reciprocating Aircraft Engines"],"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":"dfe396316e67dadfac40c0f57d3038d196726b9f375e5c442e5433407f7f6b59","source_id":"us-cfr","stale":true,"prev":"us/14-cfr-33.45","next":"us/14-cfr-33.49"},"notice":"GroundRules: Original legal text. Not legal advice."}