What it approves
Installation of a liquid oxygen system
What the certificate says
From the PDF’s text layer, without the form’s printed wording. Layout and order may 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
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ADs that name this STC · 0
An AD can apply because an STC is installed, or mention one in its text.
Approved models · 1
| Make | Model | Data sheet |
|---|---|---|
| MD Helicopters LLC | MD900 | H19NM |
Every issue · 3
DRS keeps each issue of an STC as its own record, with its own certificate and attachments.
| Date | Status | Files |
|---|---|---|
| February 8, 2026 | Reissued, current | Certificate |
| August 5, 2022 | Reissued, earlier issue | Certificate |
| May 16, 2011 | Reissued, earlier issue | Certificate |