# STC SR09031RC

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: MD Helicopters LLC, United States
- Description: Installation of an Allied Signal EFIS-40 two tube electronic flight instrument system in accordance with Heli-Dyne drawing list HD900-00-0018, Rev. IR, dated May 22, 1995, or later FAA approved revisions.
- Applied: January 12, 1995
- Status date: August 5, 2022
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21, Part 27
- Data sheets: [TCDS H19NM](https://openairdocs.org/tcds/H19NM)
- Certificate PDF: https://openairdocs.org/files/sha256/1f/ae/1faed966ba78f8aa5ed781b53d3121cfb0fc2e92c57a699ebf81a7526f6f1311
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID176940592020221014171358.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SR09031RC

## ADs that name it (0)

None.

## Approved models (1)

- MD Helicopters LLC MD900 ([TCDS H19NM](https://openairdocs.org/tcds/H19NM))

## 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 FAA Form 8110-2 (03/21) Page 1 of 2 22___

Number: SR09031RC

This certificate issued to: MD Helicopters, LLC 4555 East McDowell Road Mesa, Arizona 85215-9734

27 of the Federal Aviation Regulations.

Original Product – Type Certificate Number: H19NM

- Make: MD Helicopters, LLC Model: MD900

Description of Type Design Change: Installation of an Allied Signal EFIS-40 two tube electronic flight instrument system in accordance with Heli-Dyne Drawing List HD900-00-0018, Revision IR, dated May 22, 1995, or later FAA approved revisions.

Limitations and Conditions: This installation is limited to VFR operations. Rotorcraft Flight Manual Supplement (RFMS), dated August 1, 1995, or later RFMS is required. The installer must determine whether this design change is compatible with previously approved modifications. 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.

Date of Application: January 12, 1995 Date Reissued: October 26, 2010; May 16, 2011 August 5, 2022

Date of Issuance: August 1, 1995 Date Amended:

Title: Acting Manager, Technical & Administrative Support Section Aviation Safety Los Angeles ACO Branch

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate FAA Form 8110-2 (03/21) Page 2 of 2 22___

Number: SR09031RC

## Every issue (2)

- August 5, 2022: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/1f/ae/1faed966ba78f8aa5ed781b53d3121cfb0fc2e92c57a699ebf81a7526f6f1311)
- May 16, 2011: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/8e/a8/8ea87fd8fa5fd484ba4b11948a749c51a5dd0d7ca9d9eb278ad29ea403df62c0)

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