# STC SA02403AK

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Kirst Aviation, United States
- Description: Install a South Wind Model 940D heater
- Applied: August 7, 2012
- Status date: April 23, 2013
- Product: Aircraft, Small Airplane
- Certification basis: Part 3, Part 21
- Data sheets: [TCDS A-782](https://openairdocs.org/tcds/A-782)
- Certificate PDF: https://openairdocs.org/files/sha256/af/76/af7666637c232ef068e05a9eba7d86888a33482234b5f2a4c9a8f665e3261043
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8CC96FAF91CB76F686257B7A00473A79.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA02403AK

## ADs that name it (0)

None.

## Approved models (1)

- Sierra Hotel Aero Inc. Navion A (Army L-17B and L-17C) ([TCDS A-782](https://openairdocs.org/tcds/A-782))

## 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.

This certificate issued to Kirst Aviation P.O. Box 73621 Fairbanks, AK 99707

Part 3 of the Civil Air Regulations

Original Product – Type Certificate Number: A-782 Make: Sierra Hotel Aero, Inc.

Model: Navion A

Description of Type Design Change: Install a South Wind Model 940D heater in accordance with the Installation Instructions for South Wind Aircraft Heaters, Form Ind 1363 (Rev. 2-65) and FAA Form 337, dated March 31, 2011.

1. You cannot use descriptive data about this design change to duplicate other products. This approval is limited to only the installation made in aircraft model listed above, serial no. NAV-4-1827.

2. This Supplemental Type Certificate (STC) does not permit manufacturing of parts for multiple ins ta lla tions . Data pertaining to this modification are inadequate for duplication in other aircraft. No additional modifications of this type are to be approved solely by reference to this STC.

3. Kirst Aviation Airplane Flight Manual Supplement for Navion N4827K, serial no. NAV-4-1827, dated April 23, 2013, or later FAA approved revision, is a required part of this modification.

4. For instructions for continued airworthiness, refer to Kirst Aviation Instructions for Continued Airworthiness, Rev. IR, dated October 24, 2012, or later FAA accepted revision.

5. For Airworthiness Limitations, see description as noted in the Kirst Aviation Instructions for Continued Airworthiness, Rev. IR, dated October 24, 2012, paragraph 14, or later FAA approved limitations.

6. A copy of this Certificate must be maintained as part of the permanent record of the modified aircraft.

Date of application: August 7, 2012 Date reissued:

Date of issuance: April 23, 2013 Date amended:

(Signature) August A. Asay Manager, Anchorage Aircraft Certification Office

(Title)

## Every issue (1)

- April 23, 2013: Issued, Current. [certificate](https://openairdocs.org/files/sha256/af/76/af7666637c232ef068e05a9eba7d86888a33482234b5f2a4c9a8f665e3261043)

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