14 CFR 27.653 - Pressure venting and drainage of rotor blades.
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(b) Paragraphs (a)(1) and (2) of this section does not apply to sealed rotor blades capable of withstanding the maximum pressure differentials expected in service.
[Amdt. 27-2, 33 FR 963, Jan. 26, 1968]
Title 14 published on 2014-01-01
no entries appear in the Federal Register after this date.