# STC SR09151RC

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: MD Helicopters LLC, United States
- Description: Installation of an Allied Signal EFS-50 Four Tube Electronic Flight Instrument System (EFIS) for single pilot IFR operations in accordance with Heli-Dyne Drawing List, 
HD-900-00-0033, Revision IR, dated November 6, 1996, or later FAA approved revision.
- Applied: July 3, 1996
- 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/bf/ea/bfea0e1cb6f297fc7750fda6ec2c00692840f423a85ed9bffc9473cc7b5aec8c
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID148329521820221014171605.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SR09151RC

## 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: SR09151RC

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 EFS-50 Four Tube Electronic Flight Instrument System (EFIS) for single pilot IFR operations in accordance with Heli-Dyne Drawing List HD-900-00-0033, Revision IR, dated November 6, 1996, or later FAA approved revision.

Limitations and Conditions: Heli-Dyne Rotorcraft Flight Manual Supplement (RFMS), HDD96-29, dated January 14, 1997, or later FAA approved Supplement revision is required with this installation. 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: July 3, 1996 Date Reissued: October 26, 2010; May 16, 2011 August 5, 2022

Date of Issuance: January 14, 1997 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: SR09151RC

## Every issue (2)

- August 5, 2022: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/bf/ea/bfea0e1cb6f297fc7750fda6ec2c00692840f423a85ed9bffc9473cc7b5aec8c)
- May 16, 2011: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/92/50/925030e80a7a5c7cbdccd6656c5b74aed71382828e30eefae038b85b6ffb9be6)

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