# STC SA1728WE

- Type: Supplemental type certificate
- Status: Current, Surrendered
- Holder: Jay- Dee Aircraft Supply Co, United States
- Description: Installation of Bendix Model DRA 12 Doppler navigation system and relocation of ATC transponder antenna and marker beacon antenna.
- Status date: January 25, 2008
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A6WE](https://openairdocs.org/tcds/A6WE)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/78C3308A54A265008625741200616CAD.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1728WE

## ADs that name it (0)

None.

## Approved models (2)

- McDonnell Douglas Corporation DC-9-15 ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- McDonnell Douglas Corporation DC-9-32 ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))

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