---
kind: "section"
citation: "14 C.F.R. § 29.610"
title: "14"
number: "29.610"
heading: "Lightning and static electricity protection."
url: "https://uscodex.org/cfr/14/29.610"
---

# §29.610. Lightning and static electricity protection.

- (a) The rotorcraft structure must be protected against catastrophic effects from lightning.
- (b) For metallic components, compliance with [paragraph (a)](#a) of this section may be shown by—
  - (1) Electrically bonding the components properly to the airframe; or
  - (2) Designing the components so that a strike will not endanger the rotorcraft.
- (c) For nonmetallic components, compliance with [paragraph (a)](#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 to not endanger the rotorcraft.
- (d) **The electric bonding and protection against lightning and static electricity must—**
  - (1) Minimize the accumulation of electrostatic charge;
  - (2) Minimize the risk of electric shock to crew, passengers, and service and maintenance personnel using normal precautions;
  - (3) Provide and electrical return path, under both normal and fault conditions, on rotorcraft having grounded electrical systems; and
  - (4) Reduce to an acceptable level the effects of static electricity on the functioning of essential electrical and electronic equipment.

## Notes

### Amendments

[Amdt. 29-24, 49 FR 44437, Nov. 6, 1984; Amdt. 29-40, 61 FR 21907, May 10, 1996; 61 FR 33963, July 1, 1996; Amdt. 29-53, 76 FR 33135, June 8, 2011]

### Authority

Authority: 49 U.S.C. 106(f), 106(g), 40113, 44701-44702, 44704.

### Source

Source: Docket No. 5084, 29 FR 16150, Dec. 3, 1964, unless otherwise noted.

### Amendments

[Amdt. 29-24, 49 FR 44437, Nov. 6, 1984; Amdt. 29-40, 61 FR 21907, May 10, 1996; 61 FR 33963, July 1, 1996; Amdt. 29-53, 76 FR 33135, June 8, 2011]