14 C.F.R. § 25.954 Fuel system lightning protection.
Title 14 - Aeronautics and Space
The fuel system must be designed and arranged to prevent the ignition of fuel vapor within the system by— (a) Direct lightning strikes to areas having a high probability of stroke attachment; (b) Swept lightning strokes to areas where swept strokes are highly probable; and (c) Corona and streamering at fuel vent outlets. [Amdt. 25–14, 32 FR 11629, Aug. 11, 1967]
Title 14: Aeronautics and Space
PART 25—AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY AIRPLANES
Subpart E—Powerplant
Fuel System
§ 25.954 Fuel system lightning protection.
