# STC SA220NW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Schwarz, Sigmund, United States
- Description: Installation of a Sorensen 151 Gallon Spray Pod (less spray equipment) for use as either a cargo or electronic equipment carrier
- Applied: August 5, 1975
- Status date: October 3, 1975
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 3A24](https://openairdocs.org/tcds/3A24)
- Certificate PDF: https://openairdocs.org/files/sha256/1b/65/1b655eae4eb7773f23c5266d3a483a5f24bb6406ae51124a3d1b06a015c0c473
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/4E105D1659869CD986257AE2005B44B6.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA220NW

## ADs that name it (0)

None.

## Approved models (1)

- Cessna Aircraft Company 185 ([TCDS 3A24](https://openairdocs.org/tcds/3A24))

## What the certificate says

The certificate is a scan without a text layer; open the PDF to read it.

## Every issue (2)

- October 3, 1975: Issued, Current. [certificate](https://openairdocs.org/files/sha256/1b/65/1b655eae4eb7773f23c5266d3a483a5f24bb6406ae51124a3d1b06a015c0c473)
- October 2, 1975: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/1b/65/1b655eae4eb7773f23c5266d3a483a5f24bb6406ae51124a3d1b06a015c0c473)

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