# STC SA5221NM

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: USDA Forest Service, United States
- Description: Installation of vertical anchor assembly for smoke jumper operations.
- Status date: February 26, 1992
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A16EU](https://openairdocs.org/tcds/A16EU)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7E0E78D399DBB38B85256CC2001227A2.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA5221NM

## ADs that name it (0)

None.

## Approved models (4)

- Dornier-Werke G.m.b.H. Do 228-101 ([TCDS A16EU](https://openairdocs.org/tcds/A16EU))
- Dornier-Werke G.m.b.H. Do 228-200 ([TCDS A16EU](https://openairdocs.org/tcds/A16EU))
- Dornier-Werke G.m.b.H. Do 228-201 ([TCDS A16EU](https://openairdocs.org/tcds/A16EU))
- Dornier-Werke G.m.b.H. Do 228-202 ([TCDS A16EU](https://openairdocs.org/tcds/A16EU))

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