# STC SA4221WE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Ecogen, Inc, United States
- Description: Installation of two Albany International dispersion POD, Drawing No. 21940 or 21961.
- Status date: April 28, 1993
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A10SO](https://openairdocs.org/tcds/A10SO)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/AF29AEA5D6800AD285256CC2000E3A9B.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4221WE

## ADs that name it (0)

None.

## Approved models (1)

- The New Piper Aircraft Inc. PA-36-285 (Restricted Cat.) ([TCDS A10SO](https://openairdocs.org/tcds/A10SO))

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.