# STC SA266NW

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Air Ag, Inc, United States
- Description: Installation of automatic flagman Model No. 6.
- Status date: May 12, 1977
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A4SW](https://openairdocs.org/tcds/A4SW)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9107587690C4A98085256CC20008C71A.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA266NW

## ADs that name it (0)

None.

## Approved models (3)

- Ayres Corporation 600 S2D ([TCDS A4SW](https://openairdocs.org/tcds/A4SW))
- Ayres Corporation 800 S-2R ([TCDS A4SW](https://openairdocs.org/tcds/A4SW))
- Ayres Corporation S2R ([TCDS A4SW](https://openairdocs.org/tcds/A4SW))

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