# STC SA00940AT

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Dayton-Granger, Inc., United States
- Description: Installation of an ADF antenna system.
- Status date: January 5, 1996
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A20SO](https://openairdocs.org/tcds/A20SO)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A5A5A4A6E943307685256CC1007E01EC.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA00940AT

## ADs that name it (0)

None.

## Approved models (1)

- The New Piper Aircraft Inc. PA-31-350 ([TCDS A20SO](https://openairdocs.org/tcds/A20SO))

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