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Federal regulations · Through 2026-08-25 · Newer source version available

14 CFR 25.581: Lightning protection.

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Where this section sits in the code
  1. Title 14—Aeronautics and Space
  2. CHAPTER I—FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION
  3. SUBCHAPTER C—AIRCRAFT
  4. PART 25—AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY AIRPLANES
  5. Subpart C—Structure

(a) The airplane must be protected against catastrophic effects from lightning.

(b) For metallic components, compliance with paragraph (a) of this section may be shown by—

(1) Bonding the components properly to the airframe; or

(2) Designing the components so that a strike will not endanger the airplane.

(c) For nonmetallic components, compliance with paragraph (a) of this section may be shown by—

(1) Designing the components to minimize the effect of a strike; or

(2) Incorporating acceptable means of diverting the resulting electrical current so as not to endanger the airplane.

Collected 2026-08-27T02:24:20Z. Source file · JSON

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