# STC SA4-1221

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Tempo Design Corp, United States
- Description: Radome and radar antenna.
- Status date: January 1, 1960
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 1A7](https://openairdocs.org/tcds/1A7)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/3B1C9281C3FE573C862570CE005A0420.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4-1221

## ADs that name it (0)

None.

## Approved models (1)

- Martin-Marietta Corporation 404 ([TCDS 1A7](https://openairdocs.org/tcds/1A7))

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