# STC SA12400WI

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Alpine Aviation, Inc., United States
- Description: Installation of Garmin Avionics Modernization Package
- Applied: August 29, 2022
- Status date: July 22, 2026
- Product: Aircraft, Small Airplane
- Certification basis: Part 23
- Data sheets: [TCDS A24CE](https://openairdocs.org/tcds/A24CE)
- Certificate PDF: https://openairdocs.org/files/sha256/38/f9/38f9e13166dd0c3f8125c87809526b79805fc181d89d4fdb2e27c9cc1f955f98
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID122270677620260805151634.0001
- DRS record last changed: August 5, 2026
- Page: https://openairdocs.org/stc/SA12400WI

## ADs that name it (0)

None.

## Approved models (1)

- Textron Aviation Inc. 1900D ([TCDS A24CE](https://openairdocs.org/tcds/A24CE))

## 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.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number This certificate issued to:

SA12400WI Alpine Aviation, Inc.

1177 Alpine Air Way Provo, UT 84601 Part 23 14 CFR A24CE Textron Aviation, Inc.

1900D Compatibility of this design change with previously approved modifications must be determined by the installer.

08/29/2022 07/22/2026 06/04/2026 for Mr. Jason S. Deutschman Acting Manager, Central Certification Branch Compliance & Airworthiness Division Aircraft Certification Service 3 Installation of Garmin Avionics Modernization Package. Data required:

1. FAA Approved Master Document List (MDL), No. 1000-3420-L01-00, Revision IR, dated May 5, 2026, and

2. FAA Approved Airplane Flight Manual Supplements (AFMS), No. 1000-3420-A01-00 or No. 1000-3420-A03-00 or No. 1000-3420-A04-00, all Revision IR, all dated April 29, 2026, or later FAA Approved revisions to 1 or 2.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number

Date o transfer:

SA12400WI 07/22/2026 3

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number SA12400WI 07/22/2026 Certification Basis:

Based on 14 CFR part §21.115 and §21.101, and the FAA policy for significant changes in FAA Order 8110-48, the certification basis for this modification is as follows:

1. The certification basis for parts not changed or not affected by this change remain as specified in the applicable TCDS.

2. The certification basis for parts changed or affected by this change since the date of application, 08/29/2022, was determined to be:

3 3 Section:

23.251(b)

23.301(a)(b)

23.305

23.573(b)

23.574(a)

23.575

23.607(b)

23.611

23.613(a)(b)(c)(d)

23.773(a)(2)

23.853(d)(3)(v)

23.867(a)(b)(c)

23.1301(a)(b)(c)

23.1303(a)(b)(c)(d)(e)(1)(g)

23.1306(a)(b)

23.1308(a)(b)(c)

23.1309(a)(b)(c)(d)(1)(2)

23.1311(a)(1)(2)(3)(5)(6)(7)

(b) Amdt.

23-62 23-48 23-45 23-48 23-48 23-48 23-48 23-48 23-45 23-63 23-62 23-49 23-62 23-62 23-61 23-57 23-62 23-62 Section:

23.1321(a)(c)(d)(5)(e)

23.1322(a)(b)(c)(d)

23.1323(a)(c)

23.1325(b)(1)(2)(ii)

23.1329(e)(f)(h)

23.1331(b)(c)

23.1351(a)(2)(ii)

23.1357(a)(b)(c)(d)

23.1359(c)

23.1365(a)(b)(d)(e)

23.1419(a)(b)(c)

23.1431(a)(b)(c)(d)(e)

23.1457(a)(1)(2)(3)(4)(5)(b)

23.1543(b)(c)

23.1545(a)(c)(d)

23.1555(a)

23.1581(a)(b)(1)(3)(d)(f)

23.1583(a)(1)(h)(m)

23.1585(a)(j) Amdt.

23-49 23-43 23-62 23-50 23-49 23-62 23-49 23-43 23-49 23-49 23-43 23-62 23-64 23-50 23-62 23-62 23-50 23-62 23-62 ---------------------------------------END---------------------------------------

## Every issue (2)

- July 22, 2026: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/38/f9/38f9e13166dd0c3f8125c87809526b79805fc181d89d4fdb2e27c9cc1f955f98)
- Undated: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/3c/53/3c53e903e866a64a1c1b7a43a616205f413bf9cda5fe2467ae4023ba857fc1b6)

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