14 CFR 33.25
§ 33.25 Accessory attachments.
United States · 14 CFR — Aeronautics and Space · Status: effective
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- Citation
- 14 CFR 33.25, § 33.25 Accessory attachments, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/55055
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Full text
The engine must operate properly with the accessory drive and mounting attachments loaded. Each engine accessory drive and mounting attachment must include provisions for sealing to prevent contamination of, or unacceptable leakage from, the engine interior. A drive and mounting attachment requiring lubrication for external drive splines, or coupling by engine oil, must include provisions for sealing to prevent unacceptable loss of oil and to prevent contamination from sources outside the chamber enclosing the drive connection. The design of the engine must allow for the examination, adjustment, or removal of each accessory required for engine operation.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.