# STC SR09040RC

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: MD Helicopters LLC, United States
- Description: Installation of an Observer/Attendant Seat, Blackout Curtain, and Pedal Cover in accordance with Heli-Dyne Master Drawing List HD900-00-0009, Revision D, dated August 28, 1995, or later FAA approved revisions.
- Applied: November 23, 1994
- 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/sha256/51/61/51613a6b1fe7179381e5b93be903b753c7d9d42f634bb6aee55bd730174a3c41
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID199595169720221014171439.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SR09040RC

## 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: SR09040RC

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 Observer/Attendant Seat, Blackout Curtain, and Pedal Cover in accordance with Heli-Dyne Master Drawing List HD900-00-0009, Revision D, dated August 28, 1995, or later FAA approved revision.

Limitations and Conditions: Flight Manual Supplement for Medical Observer/Attendant Seat, document number HDD95-26, dated June 12, 1995 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: November 23, 1994 Date Reissued: October 26, 2010; May 16, 2011 August 5, 2022

Date of Issuance: September 12, 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: SR09040RC

## Every issue (2)

- August 5, 2022: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/51/61/51613a6b1fe7179381e5b93be903b753c7d9d42f634bb6aee55bd730174a3c41)
- May 16, 2011: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/a1/b7/a1b764941011839ac6e5051b3bf0df468d1c4536caf42afefd19e218d13f6d8d)

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