# Final Airworthiness Design Standards for Acceptance Under the Primary Category Rule; Orlando Helicopter Airways (OHA), Inc., Models Cessna 172I, 172K, 172L, and 172M
> **Rule** · Issuance of final Airworthiness Design Standards. · Published 2010-08-30 · Effective 2010-09-29 · 75 FR 52860
## Document
- **Document number:** 2010-21444
- **Category:** other
- **Type:** Rule
- **Action:** Issuance of final Airworthiness Design Standards.
- **Citation:** 75 FR 52860
- **Publication date:** 2010-08-30
- **Effective date:** 2010-09-29
## Abstract

This Airworthiness Design Standard is issued to OHA, Inc., for certification under primary category regulations of modified Cessna 172I, 172K, 172L, and 172M airplanes.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2010/08/30/2010-21444/final-airworthiness-design-standards-for-acceptance-under-the-primary-category-rule-orlando)
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