---
kind: "section"
citation: "14 C.F.R. § 33.63"
title: "14"
number: "33.63"
heading: "Vibration."
url: "https://uscodex.org/cfr/14/33.63"
---

# §33.63. Vibration.


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.


## Notes

### Amendments

[Doc. No. 28107, 61 FR 28433, June 4, 1996]

### Authority

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

### Source

Source: Docket No. 3025, 29 FR 7453, June 10, 1964, unless otherwise noted.

### Amendments

[Doc. No. 28107, 61 FR 28433, June 4, 1996]