14 CFR 29.653 - Pressure venting and drainage of rotor blades.

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§ 29.653 Pressure venting and drainage of rotor blades.
(a) For each rotor blade—
(1) There must be means for venting the internal pressure of the blade;
(2) Drainage holes must be provided for the blade; and
(3) The blade must be designed to prevent water from becoming trapped in it.
(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. 29-3, 33 FR 967, Jan. 26, 1968]

Title 14 published on 2014-01-01

The following are only the Rules published in the Federal Register after the published date of Title 14.

For a complete list of all Rules, Proposed Rules, and Notices view the Rulemaking tab.

  • 2014-12-31; vol. 79 # 250 - Wednesday, December 31, 2014
    1. 79 FR 78694 - Special Conditions: Airbus Helicopters Deutschland GmbH Model MBB-BK117D-2 Helicopters; Use of 30-Minute Power Rating
      GPO FDSys XML | Text
      DEPARTMENT OF TRANSPORTATION, Federal Aviation Administration
      Final special conditions; request for comments.
      This action is effective on Airbus Helicopters Deutschland GmbH Model MBB-BK117D-2 Helicopters on December 19, 2014. We must receive your comments by March 2, 2015.
      14 CFR Part 29

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United States Code

Title 14 published on 2014-01-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 14 CFR 29 after this date.

  • 2014-12-31; vol. 79 # 250 - Wednesday, December 31, 2014
    1. 79 FR 78694 - Special Conditions: Airbus Helicopters Deutschland GmbH Model MBB-BK117D-2 Helicopters; Use of 30-Minute Power Rating
      GPO FDSys XML | Text
      DEPARTMENT OF TRANSPORTATION, Federal Aviation Administration
      Final special conditions; request for comments.
      This action is effective on Airbus Helicopters Deutschland GmbH Model MBB-BK117D-2 Helicopters on December 19, 2014. We must receive your comments by March 2, 2015.
      14 CFR Part 29