---
kind: "section"
citation: "14 C.F.R. § 33.23"
title: "14"
number: "33.23"
heading: "Engine mounting attachments and structure."
url: "https://uscodex.org/cfr/14/33.23"
---

# §33.23. Engine mounting attachments and structure.

- (a) The maximum allowable limit and ultimate loads for engine mounting attachments and related engine structure must be specified.
- (b) The engine mounting attachments and related engine structure must be able to withstand—
  - (1) The specified limit loads without permanent deformation; and
  - (2) The specified ultimate loads without failure, but may exhibit permanent deformation.

## Notes

### Amendments

[Amdt. 33-10, 49 FR 6851, Feb. 23, 1984]

### 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

[Amdt. 33-10, 49 FR 6851, Feb. 23, 1984]