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e-CFR data is current as of January 14, 2021 |
Title 14 → Chapter I → Subchapter G → Part 121 → Subpart J → §121.251 |
Title 14: Aeronautics and Space
PART 121—OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL OPERATIONS
Subpart J—Special Airworthiness Requirements
§121.251 Engine accessory section diaphragm.
Unless equivalent protection can be shown by other means, a diaphragm that complies with §121.247 must be provided on air-cooled engines to isolate the engine power section and all parts of the exhaust system from the engine accessory compartment.