# STC SA1-507

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Saint-Gobain Performance Plastics Corp, United States
- Description: 2012X Series radomes.
- Applied: September 26, 1960
- Status date: July 6, 2005
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A-762](https://openairdocs.org/tcds/A-762)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/2A91110D02360ABC862570580069E61A.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1-507

## ADs that name it (0)

None.

## Approved models (7)

- McDonnell Douglas Corporation C54-DC ([TCDS A-762](https://openairdocs.org/tcds/A-762))
- McDonnell Douglas Corporation C54A-DC ([TCDS A-762](https://openairdocs.org/tcds/A-762))
- McDonnell Douglas Corporation C54B-DC ([TCDS A-762](https://openairdocs.org/tcds/A-762))
- McDonnell Douglas Corporation C54D-DC ([TCDS A-762](https://openairdocs.org/tcds/A-762))
- McDonnell Douglas Corporation C54E-DC ([TCDS A-762](https://openairdocs.org/tcds/A-762))
- McDonnell Douglas Corporation C54G-DC ([TCDS A-762](https://openairdocs.org/tcds/A-762))
- McDonnell Douglas Corporation DC-4 ([TCDS A-762](https://openairdocs.org/tcds/A-762))

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