14 C.F.R. § 27.1017 Oil lines and fittings.
Title 14 - Aeronautics and Space
(a) Each oil line must be supported to prevent excessive vibration. (b) Each oil line connected to components of the rotorcraft between which relative motion could exist must have provisions for flexibility. (c) Flexible hose must be approved. (d) Each oil line must have an inside diameter of not less than the inside diameter of the engine inlet or outlet. No line may have splices between connections.
Title 14: Aeronautics and Space
PART 27—AIRWORTHINESS STANDARDS: NORMAL CATEGORY ROTORCRAFT
Subpart E—Powerplant
Oil System
§ 27.1017 Oil lines and fittings.
