# STC SR09027RC

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: MD Helicopters LLC, United States
- Description: Installation of a liquid oxygen system
- Applied: November 23, 1994
- Status date: February 8, 2026
- Product: Aircraft, Rotorcraft
- Certification basis: Part 27
- Data sheets: [TCDS H19NM](https://openairdocs.org/tcds/H19NM)
- Certificate PDF: https://openairdocs.org/files/sha256/80/fc/80fc62c6add0bf83d7c104c17e8f958d47dd648ec8d665b6d34003876285c5c4
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID174227803420260415144529.0001
- DRS record last changed: April 15, 2026
- Page: https://openairdocs.org/stc/SR09027RC

## 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.

SR09027RC MD Helicopters, LLC 4555 East McDowell Road Mesa, AZ 85215-9734 Part 27 Title 14 CFR H19NM MD Helicopters, LLC MD900 Rotorcraft Flight Manual Supplement (RFMS), dated July 28, 1995, or later FAA approved revision 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.

11/23/1994 10/26/2010 05/16/2011 08/05/2022 07/31/1995 ✔ for Manager, West Certification Branch 3 Installation of a liquid oxygen system in accordance with Heli-Dyne Master Drawing List HD900 00 0012, Revision C, dated June 21, 1995, or later FAA approved revisions.

SR09027RC 02/08/2026 3

SR09027RC 02/08/2026 Date Reissued: 02/08/2026

--------------------------End------------------------- 3 3 Add Page

## Every issue (3)

- February 8, 2026: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/80/fc/80fc62c6add0bf83d7c104c17e8f958d47dd648ec8d665b6d34003876285c5c4)
- August 5, 2022: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/73/c3/73c3d103433977382901e14a56e5e6f62ad89312eb36f96ab4a8878c61671370)
- May 16, 2011: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/81/9a/819a2e8074ff8ad0a58f9c457d64d2bd851268ca299b71baa990d2609edc7bd5)

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