# STC SA5821NM

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Horizon Instruments Inc, United States
- Description: Installation of an electronic digital engine tachmoter, Model P-1000.
- Status date: January 14, 2002
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A21](https://openairdocs.org/tcds/3A21)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/CE4F0612ADEFC8E385256CC200122BBB.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA5821NM

## ADs that name it (0)

None.

## Approved models (28)

- The Cessna Aircraft Company 210 ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company 210-5 (205) ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company 210-5A (205A) ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company 210A ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company 210B ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company 210C ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company 210D ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company 210E ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company 210F ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company 210G ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company 210H ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company 210J ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company 210K ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company 210L ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company 210M ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company 210N ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company 210R ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company P210N ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company P210R ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company T210F ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company T210G ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company T210H ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company T210J ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company T210K ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company T210L ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company T210M ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company T210N ([TCDS 3A21](https://openairdocs.org/tcds/3A21))
- The Cessna Aircraft Company T210R ([TCDS 3A21](https://openairdocs.org/tcds/3A21))

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