# STC SA527NE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: WSK, Inc, United States
- Description: Installation of Tetrafluror seal P/N TF888S080686-4B with supporting backup spring SD870106-1.
- Status date: October 12, 1994
- 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/56AA98F3D9EA908685256CCB006018F5.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA527NE

## 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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