# STC SR11405DS

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Airbus Helicopters Inc., United States
- Description: Installation of an External 5G Filter for a single Radio Altimeter
- Applied: December 9, 2025
- Status date: June 30, 2026
- Product: Aircraft, Rotorcraft
- Certification basis: Part 29
- Data sheets: [TCDS R00009RD](https://openairdocs.org/tcds/R00009RD)
- Certificate PDF: https://openairdocs.org/files/sha256/ca/d1/cad1408f6a6355f9312de7e19e5f2fe9d8a78ebb5102c8e59806ef409cb52bc8
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID104845548520260713154454.0001
- DRS record last changed: July 13, 2026
- Page: https://openairdocs.org/stc/SR11405DS

## ADs that name it (0)

None.

## Approved models (1)

- Airbus Helicopters H160-B ([TCDS R00009RD](https://openairdocs.org/tcds/R00009RD))

## 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.

SR11405DS Airbus Helicopters, Inc.

2701 N. Forum Drive Grand Prairie, TX 75052 29 Code of Federal Regulations R00009RD Airbus Helicopters H160-B

1. This STC is applicable to all serial numbers for this Make/Model.

2. This STC is limited to H160-B aircraft with a single Radalt configuration only. Once installed, the aircraft is 5G tolerant.

---See continuation sheet 3 12/9/25 6/30/26 Michael R. Giambrocco, ODA-700097-SW ODA Lead administrator 3 Installation of an External 5G Filter for a single Radio Altimeter in accordance with Airbus Helicopters, Inc. Master Drawing List U345U 0300 500 Rev. A dated 5/8/2026 or later ODA approved revision.

SR11405DS 06/30/26 3

SR11405DS 06/30/26 Description of Type Design Change (continued from sheet 1):

Instructions for Continued Airworthiness U150U 0300 680 Rev. A dated 6/30/2026 or later ODA or AED accepted revision are required.

Certification Basis Based on 14 CFR §§ 21.115 and 21.101 and the FAA policy for significant changes in FAA Order 8110.48A, the certification basis is the same as TCDS R00009RD, Rev 3, dated June 16, 2025, with the following exception: 14 CFR 29.1309 at Amendment 29-59.

Limitations and Conditions (continued from sheet 1):

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

4. If the holder agrees to permit another person to use this certificate to alter the product, the holder must give the other person written evidence of that permission.

---END--- 3 3 Add Page

## Every issue (1)

- June 30, 2026: Issued, Current. [certificate](https://openairdocs.org/files/sha256/ca/d1/cad1408f6a6355f9312de7e19e5f2fe9d8a78ebb5102c8e59806ef409cb52bc8)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.