# STC SH474AL

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Alaskan Sky-Craft Co, United States
- Description: Installation of Alaskan Sky-Craft Company, Inc. cargo step.
- Status date: July 20, 1973
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS H2SW](https://openairdocs.org/tcds/H2SW)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/80012B0808D0779285256CC2005C3288.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SH474AL

## ADs that name it (1)

- [AD 79-10-01](https://openairdocs.org/ad/79-10-01): External Load Carrying Devices · Bell Helicopter Textron Canada 206A and 206B with STC SH474AL or SH515AL. Effective May 14, 1979. Named in the applicability

## Approved models (2)

- Bell Helicopter Textron (Canada) 206A ([TCDS H2SW](https://openairdocs.org/tcds/H2SW))
- Bell Helicopter Textron (Canada) 206B ([TCDS H2SW](https://openairdocs.org/tcds/H2SW))

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From OpenAirDocs.org, an independent open copy of FAA and NTSB data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.