# STC SA02557AK

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Momentum Aeronautics Holdings LLC, United States
- Description: Installation of Momentum Aeronautics, LLC seat model number 614-38 single-place forward facing passenger seats
- Applied: April 28, 2020
- Status date: February 15, 2022
- Product: Aircraft, Small Airplane
- Certification basis: Part 21, Part 23
- Data sheets: [TCDS A37CE](https://openairdocs.org/tcds/A37CE)
- Certificate PDF: https://openairdocs.org/files/sha256/27/a9/27a971baf71e7717f301c07498344ce2edf12fbf3d7a7568ad951e5577918aec
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/94DA344D33DF5C3B862587F10060EB5D.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA02557AK

## ADs that name it (0)

None.

## Approved models (2)

- Textron Aviation Inc. 208 ([TCDS A37CE](https://openairdocs.org/tcds/A37CE))
- Textron Aviation Inc. 208B ([TCDS A37CE](https://openairdocs.org/tcds/A37CE))

## 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: SA02557AK This certificate issued to: Momentum Aeronautics Holdings, LLC 500 L Street, Suite 200 Anchorage, AK 99501 Part 23 of Federal Aviation Regulations.

Original Product: Make: Textron Aviation Inc.

Type Certificate Num6er: A37CE Model: 208, 208B Description of Type Design Change: Installation of Momentum Aeronautics, LLC seat model number 614-38 single-place forward facing passenger seats in Textron Aviation, Inc. (Cessna) 208 and 208B aircraft per installation instructions in Document Number 25-614-39-01, Revision F, dated June 29, 2021.

1. Compatibility of the design change with previously approved modifications must be determined by the installer.

2. Instructions for Continued Airworthiness (ICA), Momentum Aeronautics, LLC Document No. 25-614-24- 01, Revision B, dated January 26, 2022, or later FAA accepted revision, is a required part of this modification.

(Continued on Page 3 of 3)

Date of application: April 28, 2020 Date reissued:

Date of issuance: December 3, 2021 Date amended: February 15, 2022 By direction of the Administrator Signature:

August A. Asay Title: Manager, Anchorage ACO Branch 14 CFR 21.120) FAA Form 8110-2 (06/20) SUPERSEDES PREVIOUS EDITION PAGE 1 OF 3

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA02557AK

Transfer Endorsement Transfer the ownership of Supplemental Type Certificate Number: SA02557AK To (Name and address of transferee):

14 CFR 21.120) FAA Form 8110-2 (06/20) SUPERSEDES PREVIOUS EDITION PAGE 2 OF 3

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Date of application: April 28, 2020 Date of issuance: December 3, 2021 Date reissued:

Date amended: February 15, 2022 Number: SA02557AK (Continuance from Page 1 of 3)

3. Airplane Flight Manual Supplement (AFMS), Momentum Aeronautics, LLC Document No. 25-614-25-01, Revision B, dated October 19, 2021, or later FAA approved revision is a required part of this modification.

14 CFR 21.120) FAA Form 8110-2 (06/20) SUPERSEDES PREVIOUS EDITION PAGE 3 OF 3

## Every issue (2)

- February 15, 2022: Amended, Current. [certificate](https://openairdocs.org/files/sha256/27/a9/27a971baf71e7717f301c07498344ce2edf12fbf3d7a7568ad951e5577918aec)
- December 3, 2021: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/5b/1a/5b1a5080700c8e6d29f2e9e4773399cc0af4fa144c42796de10caef1bf5ce6e9)

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