# STC SH4969NM

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Airwolf Filter Corporation, United States
- Description: Installation and fabrication of the Apollo Model DTM-3 spray tank system.
- Status date: August 27, 1996
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS H10WE](https://openairdocs.org/tcds/H10WE)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/3F89666BAED9B76685256CC2005C32B1.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SH4969NM

## ADs that name it (0)

None.

## Approved models (4)

- Robinson Helicopter Company R22 ([TCDS H10WE](https://openairdocs.org/tcds/H10WE))
- Robinson Helicopter Company R22 ALPHA ([TCDS H10WE](https://openairdocs.org/tcds/H10WE))
- Robinson Helicopter Company R22 BETA ([TCDS H10WE](https://openairdocs.org/tcds/H10WE))
- Robinson Helicopter Company R22 MARINER ([TCDS H10WE](https://openairdocs.org/tcds/H10WE))

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