# STC ST00340AT

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Professional Aviation, United States
- Description: Installation of single Bendix/King KHF 950 HF System with Dayton- Granger towel bar antenna system.
- Status date: September 20, 1993
- 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/DFA7AE6D0C926B6485256CC2006A72AF.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/ST00340AT

## ADs that name it (0)

None.

## Approved models (2)

- McDonnell Douglas Corporation DC-9-30 Series ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- McDonnell Douglas Corporation DC-9-41 ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))

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