# STC SA21NE

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Whelen Engineering Co Inc, United States
- Description: Installation of Whelen A600-PR and A600-PG anti-collision strobe with forward and tail position light assemblies as replacements for wing tip lights.
- Status date: March 1, 1978
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A3SO](https://openairdocs.org/tcds/A3SO)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F66D33888C142CCB85256CCB0060187A.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA21NE

## ADs that name it (0)

None.

## Approved models (1)

- The New Piper Aircraft Inc. PA-32R-300 ([TCDS A3SO](https://openairdocs.org/tcds/A3SO))

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