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Part 33
§ 33.47

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14 CFR · Part 33

14 CFR § 33.47

Detonation test.

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Read in Subpart D

Part 33 Contents

Subpart A: General
Subpart B: Design and Construction; General
Subpart C: Design and Construction; Reciprocating Aircraft Engines
Subpart D: Block Tests; Reciprocating Aircraft Engines
Subpart E: Design and Construction; Turbine Aircraft Engines
Subpart F: Block Tests; Turbine Aircraft Engines
Subpart G: Special Requirements: Turbine Aircraft Engines
Appendix A to Part 33: Instructions for Continued Airworthiness
Appendix B to Part 33: Certification Standard Atmospheric Concentrations of Rain and Hail
Appendix D to Part 33: Mixed Phase and Ice Crystal Icing Envelope (Deep Convective Clouds)

Each engine must be tested to establish that the engine can function without detonation throughout its range of intended conditions of operation.

Reflects the eCFR edition current as of September 29, 2026. Retrieved from ecfr.gov on October 16, 2026.

Primary Source

Official Source (14 CFR · Part 33)