# STC SA00621LA

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Horizon Instruments Inc, United States
- Description: Installation of an electronic digital engine tachometer, horizon model P-1000.
- Status date: January 14, 2002
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 1A10](https://openairdocs.org/tcds/1A10)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FE04E261D701FA0A85256CC1007DC9AC.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA00621LA

## ADs that name it (0)

None.

## Approved models (5)

- The New Piper Aircraft Inc. PA-23 ([TCDS 1A10](https://openairdocs.org/tcds/1A10))
- The New Piper Aircraft Inc. PA-23-160 ([TCDS 1A10](https://openairdocs.org/tcds/1A10))
- The New Piper Aircraft Inc. PA-23-235 ([TCDS 1A10](https://openairdocs.org/tcds/1A10))
- The New Piper Aircraft Inc. PA-23-250 ([TCDS 1A10](https://openairdocs.org/tcds/1A10))
- The New Piper Aircraft Inc. PA-E23-250 ([TCDS 1A10](https://openairdocs.org/tcds/1A10))

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