14 C.F.R. § 33.63 Vibration.
Title 14 - Aeronautics and Space
Each engine must be designed and constructed to function throughout its declared flight envelope and operating range of rotational speeds and power/thrust, without inducing excessive stress in any engine part because of vibration and without imparting excessive vibration forces to the aircraft structure. [Doc. No. 28107, 61 FR 28433, June 4, 1996]
Title 14: Aeronautics and Space
PART 33—AIRWORTHINESS STANDARDS: AIRCRAFT ENGINES
Subpart E—Design and Construction; Turbine Aircraft Engines
§ 33.63 Vibration.
