# Changes to the Definition of Certain Light-Sport Aircraft
> **Rule** · Direct final rule; request for comments. · Published 2007-04-19 · Effective 2007-06-04 · 72 FR 19661
## Document
- **Document number:** E7-7453
- **Category:** other
- **Type:** Rule
- **Action:** Direct final rule; request for comments.
- **Citation:** 72 FR 19661
- **Publication date:** 2007-04-19
- **Effective date:** 2007-06-04
- **FAA docket:** Docket No. FAA-2007-27160
## Abstract

This action corrects an unintended consequence created when we adopted the original Light-Sport Aircraft (LSA) Rule; we did not have sufficient information at that time to foresee this difficulty. This action amends the definition of an LSA in two areas. The changes will (1) permit development of lighter-than-air (LTA) LSA, and (2) allow retractable landing gear for LSA intended for operation on water. The LTA change will result in a common land-based LSA maximum takeoff weight limit and allow the LTA LSA industry to design and build safe, functional LTA aircraft. Allowing retractable landing gear for LSA intended for operation on water recognizes the realities of the operation of these LSA and will also enhance the growth of that industry.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2007/04/19/E7-7453/changes-to-the-definition-of-certain-light-sport-aircraft)
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