# STC SA4178WE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: TALCO Aviation Corp., United States
- Description: Installation of inflatable door seal.
- Applied: October 16, 1979
- Status date: February 2, 2021
- Product: Aircraft, Small Airplane
- Data sheets: [TCDS 2A3](https://openairdocs.org/tcds/2A3)
- Certificate PDF: https://openairdocs.org/files/sha256/4e/df/4edf69506ae5a8adf654cf0ff0368922cc12b3e166993d140d4c7ff9ebecfdfb
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID154259677620231031202051.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA4178WE

## ADs that name it (2)

- [AD 98-21-21 R1](https://openairdocs.org/ad/98-21-21-R1): Electric Inflatable Door Seals · Cessna 17-30, 17-30A, 17-31 and 267 more. Effective May 1, 2000. Named in the applicability
- [AD 98-21-21](https://openairdocs.org/ad/98-21-21) (historical): Inflatable Door Seals · Bob Fields Aerocessories Electric Inflatable Door Seal. Effective Oct 30, 1998. Named in the applicability

## Approved models (9)

- Mooney Aircraft Corporation M20 ([TCDS 2A3](https://openairdocs.org/tcds/2A3))
- Mooney Aircraft Corporation M20A ([TCDS 2A3](https://openairdocs.org/tcds/2A3))
- Mooney Aircraft Corporation M20C ([TCDS 2A3](https://openairdocs.org/tcds/2A3))
- Mooney Aircraft Corporation M20D ([TCDS 2A3](https://openairdocs.org/tcds/2A3))
- Mooney Aircraft Corporation M20E ([TCDS 2A3](https://openairdocs.org/tcds/2A3))
- Mooney Aircraft Corporation M20F ([TCDS 2A3](https://openairdocs.org/tcds/2A3))
- Mooney Aircraft Corporation M20G ([TCDS 2A3](https://openairdocs.org/tcds/2A3))
- Mooney Aircraft Corporation M20J ([TCDS 2A3](https://openairdocs.org/tcds/2A3))
- Mooney Aircraft Corporation M20K ([TCDS 2A3](https://openairdocs.org/tcds/2A3))

## What the certificate says

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

## Every issue (1)

- February 2, 2021: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/4e/df/4edf69506ae5a8adf654cf0ff0368922cc12b3e166993d140d4c7ff9ebecfdfb)

---
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.