Navigate / EASA

CS 29.610 Lightning and static electricity protection

ED Decision 2016/025/R

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

(b)     For metallic components, compliance with sub-paragraph (a) 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 non-metallic components, compliance with sub-paragraph (a) may be shown by:

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

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

(d)     The electrical bonding and protection against lightning and static electricity must:

(1)     Minimise the accumulation of electrostatic charge;

(2)     Minimise the risk of electrical shock to crew, passengers, and servicing and maintenance personnel using normal precautions;

(3)     Provide an 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.

[Amdt 29/4]