# STC SA7738SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Twin Otter STC Holdings LLC
- Description: Installation of a freon air conditioning system.
- Status date: May 4, 2026
- Data sheets: A9EA, A9EA, A9EA
- Certificate PDF: https://openairdocs.org/files/sha256/62/56/62565bdace3c512b9b8e8cd14562803227b7414e2d34dd142ddbce1d83423c60
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID180215634520260608144213.0001
- Page: https://openairdocs.org/stc/SA7738SW

## ADs that name it

None.

## Approved models (3)

- Bombardier-Rotax GmbH DHC-6-100 (TCDS A9EA)
- Bombardier-Rotax GmbH DHC-6-200 (TCDS A9EA)
- Bombardier-Rotax GmbH DHC-6-300 (TCDS A9EA)

## What the certificate says

Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record.

SA7738SW Twin Otter STC Holdings, LLC 2875 East Patrick Lane, Suite D Las Vegas, NV 89120 Part 3 CAR A9EA De Havilland Aircraft of Canada DHC-6-100, DHC-6-200, DHC-6-300 Flight Manual Supplement, dated March 13, 1990, or later FAA approved revision is required. Compatiblity of this modification with previously installed equipment must be detemined by the installer. The Model 100 must be de Havilland Modification Bulletin Number 6/1075, "To Extend Rear Baggage Compartment," installed for installation of this STC.

If the holder agrees to premit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

08/21/1989 06/06/1991 07/18/1996 05/21/2002 03/13/1990 12/09/1991 ✔ for Manager, West Certification Branch 3 Installation of a Freon Air Conditioning System in accordance with R.W. Martin Drawing List Number 890612, dated September 18, 1990, or later FAA approved data.

SA7738SW 05/04/2026 3

SA7738SW 05/04/2026 Date Reissued: 05/04/2026

------------------------------ End----------------------------- 3 3 Add Page

## Every issue (2)

- May 4, 2026: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/62/56/62565bdace3c512b9b8e8cd14562803227b7414e2d34dd142ddbce1d83423c60)
- July 18, 1996: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/2b/f3/2bf33992532d21f9373f2eae57a0005539b85aaaacaf5126d98c3a9b95aa9e77)

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From OpenAirDocs.org, an independent open copy of FAA data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.