One of the pivotal aspects of the long-awaited Light Sport Aircraft program was a means whereby the industry could come together and agree on compliance standards in lieu of (potentially) more restrictive and stifling FAA-mandated and administered certification programs.

The advantages of this program (which took years to put together) were obvious... it tended to be less restrictive and costly to implement, it would not stifle innovation and improvement, and it was agreed to by the very people who would have to live up to the standards (once the FAA agreed that they met the letter of the law in terms of what they covered).

Rotax has become the first sport aircraft engine manufacturer to declare that they meet a LSA powerplant standard, via the document below that states which engines (including the serial numbers that actually apply) meet the ASTM standards vetted by the industry, ASTM and the FAA. It is obvious that Rotax has (early on) recognized the importance of this industry standard, and have become the first such enterprise to put together all the material necessary to comply with the requirements listed. 

"Compliance Statement/Declaration of Compliance to ASTM 2339-04
References:

• 1. ASTM 2339-04, Aug.1,2004
• 2.Serial Numbers:
• • 912A from S/N 4410660 on
  • 912F from S/N 4412888 on
  • 912S from S/N 4923163 on
  • 912UL from S/N 4407160 on
  • 912ULS from S/N 5644817 on
  • 912ULSFR from S/N 4430116 on
  • 914F from S/N 4420471 on
  • 914UL from S/N 4419024 on

ROTAX hereby declares that the aircraft engine or part of thereof as described in the statement of compliance conforms to the applicable ASTM 2339-04.

No features or characteristics are found which would make the engine unsafe provided it is installed, operated and maintained in accordance with instructions and limitations as defined by ROTAX approved documentation.

The product complies with the ASTM 2339-04 regarding our quality system for record keeping and instructions for continued airworthiness."

FMI: www.kodiakbs.com