# STC SA02501AK

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Lexavia Integrated Systems, United States
- Description: Installation of a Lexavia LFS-3505 Enhanced Vision System (EVS)
- Applied: February 5, 2017
- Status date: July 30, 2018
- Product: Aircraft, Small Airplane
- Certification basis: Part 3, Part 21
- Data sheets: [TCDS A9EA](https://openairdocs.org/tcds/A9EA)
- Certificate PDF: https://openairdocs.org/files/sha256/db/f7/dbf7650aa57b14445e691a2299bd46f0be27d6171818da9a862d5bfc1b64474e
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7CA7200DD40ABE15862582E10058209A.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA02501AK

## ADs that name it (0)

None.

## Approved models (5)

- Viking Air Limited DHC-6-1 ([TCDS A9EA](https://openairdocs.org/tcds/A9EA))
- Viking Air Limited DHC-6-100 ([TCDS A9EA](https://openairdocs.org/tcds/A9EA))
- Viking Air Limited DHC-6-200 ([TCDS A9EA](https://openairdocs.org/tcds/A9EA))
- Viking Air Limited DHC-6-300 ([TCDS A9EA](https://openairdocs.org/tcds/A9EA))
- Viking Air Limited DHC-6-400 ([TCDS A9EA](https://openairdocs.org/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.

FAA Form 8110-2(10-68) Page 1 of 2 SA02501AK This Certificate issued to Lexavia Integrated Systems 3665 Aircraft Drive Anchorage, Alaska 99502 Part 3 of the Civil Air Regulations.

Original Product – Type Certificate Number: A9EA Make: Viking Air Limited Model: DHC-6-1, DHC-6-100, DHC-6-200, DHC-6-300, DHC-6-400 Description of Type Design Change:

Installation of a Lexavia LFS-3505 Enhanced Vision System (EVS) in accordance with Lexavia “Viking Air Ltd Part-23 DHC-6 Twin Otter AML Master Drawing List”, Document Number 010-0003, Revision IR, dated May 7, 2018, or later FAA approved revision.

1) The installer must determine whether this design change is compatible with previously approved modifications.

2) If the holder agrees to permit another person to use this Certificate to alter the product, the holder shall give the other person written evidence of that permission.

3) Installation shall be maintained in accordance with Lexavia “Instructions for Continued Airworthiness (ICA) for Lexavia LFS3505 IR System on Viking Air Twin Otter DHC-6 Series Airplane”, Document Number 010-0004, Revision IR, dated July 11, 2018, or later FAA accepted revision.

4) Lexavia “Airplane Flight Manual Supplement (AFMS) for Viking Air Twin Otter DHC-6 Series Airplane”, Document Number 010-0005, Revision IR, dated July 26, 2018, or later FAA approved revision, is a required part of this installation.

(Signature) August A. Asay Manager, Anchorage ACO Branch

(Title) Date of application: February 5, 2017 Date of issuance: July 30, 2018

## Every issue (1)

- July 30, 2018: Issued, Current. [certificate](https://openairdocs.org/files/sha256/db/f7/dbf7650aa57b14445e691a2299bd46f0be27d6171818da9a862d5bfc1b64474e)

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