# STC SA04559NY

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Rocky Mountain Aircraft, Canada
- Description: Installation of Single or Dual Sandel SN4500 Primary Navigation Display(s) (EHSI) with optional SA4550
primary attitude display(s) (EADI)
- Applied: August 20, 2020
- Status date: November 9, 2020
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A9EA](https://openairdocs.org/tcds/A9EA)
- Certificate PDF: https://openairdocs.org/files/sha256/10/19/10199d813fc4eeccc08a50fb584e6ba3d11c1fa6c2e10a41da11ecdfbaededf9
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D282A82551791CB08625861F004B2296.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA04559NY

## ADs that name it (0)

None.

## Approved models (3)

- 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))

## 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 (10/20) SUPERSEDES PREVIOUS EDITION Page 1 of ___ United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number:

Part of .

IMPORT SA04559NY Rocky Mountain Aircraft 129 MacLaurin Drive Springbank Airport Calgary, Alberta Canada T3Z 3S4 3 the Civil Air Regulations A9EA Viking Air Limited DHC-6-100, DHC-6-200, DHC-6-300

1. Installation of Single or Dual Sandel SN4500 Primary Navigation Display(s) (EHSI) with optional SA4550 primary attitude display(s) (EADI) must be done in accordance with Rocky Mountain Aircraft (RMA) Modifidation Instruction E100010, Rev. C, Transport Canada Civil Aviation (TCCA) approved November 18, 2016, or later TCCA approved revisions.

(Description of Type Design Change Continued on Page 3 of 3)

1. If the holder agrees to permit another person to use this certificate to alter a product, the holder must give the other person written evidence of that permission.

(Limitations and Conditions Continued on Page 3 of 3) 08/20/2020 11/09/2020 Timothy J. Hadsall Acting Manager, New York ACO Branch Compliance & Airworthiness Division Aircraft Certification Service 3

FAA Form 8110-2 (10/20) SUPERSEDES PREVIOUS EDITION Page 2 of ___ United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number:

**IMPORT SA04559NY SA04559NY 3**

FAA Form 8110-2 (10/20) SUPERSEDES PREVIOUS EDITION Page ___ of ___ United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number:

IMPORT SA04559NY Date of Issuance: November 9, 2020

Description of Type Design Change (continued):

2. Operation of the Sandel SN4500 EHSI must be in accordance with RMA Flight Manual Supplement E100030, Rev. A, TCCA approved November 18, 2016, or later TCCA approved revisions. If optional Sandel SA4550 EADI(s) is installed, operation must be in accordance with RMA Flight Manual Supplement E100032, Rev. B, TCCA approved November 18, 2016, or later TCCA approved revisions.

3. Maintenance of the SN4500 EHSI must be in accordance with TCCA accepted RMA Maintenance Manual Supplement E100031, Rev. B, dated November 9, 2016, or later TCCA accepted revisions. If optional SA4550 EADI(s) is installed, maintenance must be in accordance with TCCA accepted RMA Maintenance Manual Supplement E100033, Rev B, dated November 9, 2016, or later TCCA accepted revisions.

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

3. This STC is applicable to all serial numbers for this Make-Model-Series.

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## Every issue (1)

- November 9, 2020: Issued, Current. [certificate](https://openairdocs.org/files/sha256/10/19/10199d813fc4eeccc08a50fb584e6ba3d11c1fa6c2e10a41da11ecdfbaededf9)

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