# STC SR12293NY

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: FreeFlight Systems Ltd., United States
- Description: Installation of a FreeFlight Systems RA-4500 MKII 5G Tolerant Radar Altimeter
- Applied: July 7, 2025
- Status date: March 2, 2026
- Product: Aircraft, Rotorcraft
- Certification basis: Part 27
- Data sheets: [TCDS H9EU](https://openairdocs.org/tcds/H9EU)
- Certificate PDF: https://openairdocs.org/files/sha256/a3/36/a3362b20499825bc7927c5691c56ceba535058854854d315e003bc3ad542f655
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID171792670720260319154940.0001
- DRS record last changed: March 19, 2026
- Page: https://openairdocs.org/stc/SR12293NY

## ADs that name it (0)

None.

## Approved models (8)

- Airbus Helicopters AS350B ([TCDS H9EU](https://openairdocs.org/tcds/H9EU))
- Airbus Helicopters AS350B1 ([TCDS H9EU](https://openairdocs.org/tcds/H9EU))
- Airbus Helicopters AS350B2 ([TCDS H9EU](https://openairdocs.org/tcds/H9EU))
- Airbus Helicopters AS350B3 ([TCDS H9EU](https://openairdocs.org/tcds/H9EU))
- Airbus Helicopters AS350BA ([TCDS H9EU](https://openairdocs.org/tcds/H9EU))
- Airbus Helicopters AS350C ([TCDS H9EU](https://openairdocs.org/tcds/H9EU))
- Airbus Helicopters AS350D ([TCDS H9EU](https://openairdocs.org/tcds/H9EU))
- Airbus Helicopters AS350D1 ([TCDS H9EU](https://openairdocs.org/tcds/H9EU))

## 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.

1333 Corporate Dr., Suite 300 Irving, TX 75038 Part 27 Title 14 Code of Federal Regulations H9EU Airbus Helicopters (See Model List on Page 3 of 4)

1. The installer must determine whether this design change is compatible with previously approved modifications.

2. 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. (See continuation sheets 3 and 4) 07/07/2025 02/23/2026 Michael P. Linegang Manager, East Certification Branch Compliance and Airworthiness Division Aircraft Certification Service 4

1. Installation of a FreeFlight Systems RA-4500 MKII 5G Tolerant Radar Altimeter on an Airbus Helicopters AS350 per FreeFlight Systems Master Data Listing, # MDL-00007, revision IR, August 15, 2025, or later FAA-approved revision.

(See continuation sheets 3 through 4) 03/02/2026

FAA 8110-2 (10/24) Page ___ of ___ SR12293NY 03/02/2026 Model List: (continued) AS350C, AS350D, AS350D1, AS350B, AS350B1, AS350B2, AS350B3, AS350BA Description of Type Design Change: (continued)

2. Maintenance is to be performed in accordance with Instructions for Continued Airworthiness (ICA), FreeFlight Systems # ICA-00006, Revision A, dated December 12, 2025, or later FAA-accepted revision.

3. Aircraft is to be operated in accordance with Rotorcraft Flight Manual Supplement (RFMS), FreeFlight Systems # FMS-00002, revision IR, FAA-approved February 5, 2026.

Limitations and Conditions: (continued)

3. A copy of this certificate and documents cited in this certificate must be maintained as part of the permanent records of the modified aircraft.

4. There are no airworthiness limitations associated with this type design change.

5. The aircraft must be operated in accordance with the "Limitations" section of the RFMS, FreeFlight Systems # FMS-00002, revision IR, FAA-approved 02/05/2026.

6. This STC is applicable to all serial numbers for the Make-Models listed.

Based on 14 CFR §21.17(a), § 21.115, §21.101 and FAA Order 8110.48A, the certification basis for this non-significant modification to AS350 rotorcraft installed with a FreeFlight Systems 5G Tolerant Radar Altimeter is as follows:

a. The type certification basis for areas unchanged by the modification is shown on Type certificate Data Sheet H9EU, Revision 26.

b. The type certification basis for areas changed or affected by the modification since the application date of July 7, 2025 is determined to be Regulations at the amendment level in TCDS H9EU (27-1 through Amendment 27-10):

27.29, 27.251, 27.301, 27.303, 27.305, 27.307, 27.337, 27.561, 27.601, 27.603, 27.605,

27.607, 27.609, 27.611, 27.613, 27.853, 27.855, 27.1301, 27.1307, 27.1309, 27.1321,

27.1322, 27.1351, 27.1357, 27.1365, 27.1367, 27.1525, 27.1541, 27.1581, 27.1583, 27.1585.

Intermediate amendment: None.

At the latest amendment, 27-1 through 27-51: 27.1529 [Amdt 27-18].

c. This installation was substantiated to support No Acoustical Change verification per 14 CFR § 21.93(b).

-----------END------------- 4 4 Add Page 03/02/2026 SR12293NY

## Every issue (2)

- March 2, 2026: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/a3/36/a3362b20499825bc7927c5691c56ceba535058854854d315e003bc3ad542f655)
- February 23, 2026: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/98/16/9816d498cdae4689fe89eb20becd946843b729934c97d033d0336d537e88e5d9)

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