# STC SR04453CH

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Appareo Systems LLC, United States
- Description: Installation of Appareo Systems LLC Stratus ES & Stratus ESG ADS-B transponder
- Applied: September 18, 2019
- Status date: March 11, 2020
- Product: Aircraft, Rotorcraft
- Certification basis: Part 27
- Data sheets: [TCDS H9EU](https://openairdocs.org/tcds/H9EU), [TCDS R0001RD](https://openairdocs.org/tcds/R0001RD), [TCDS H2SW](https://openairdocs.org/tcds/H2SW), [TCDS H7EU](https://openairdocs.org/tcds/H7EU), [TCDS H11NM](https://openairdocs.org/tcds/H11NM)
- Certificate PDF: https://openairdocs.org/files/sha256/ae/95/ae95497b91bbff22bcd5c7bd32ca932c4cd5382d4d1a353e5f77936d99762044
- Approved model list and other attachments: [SR04453CH_AML.pdf](https://openairdocs.org/files/sha256/67/87/678747eef3fbf6dc0d5459665ff2e0c9582acbdc0ea2ef37e0c21cebb351ff1b)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID144497929320240306172913.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SR04453CH

## ADs that name it (0)

None.

## Approved models (33)

- 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))
- Airbus Helicopters EC120B ([TCDS R0001RD](https://openairdocs.org/tcds/R0001RD))
- Airbus Helicopters EC130B4 ([TCDS H9EU](https://openairdocs.org/tcds/H9EU))
- Airbus Helicopters EC130T2 ([TCDS H9EU](https://openairdocs.org/tcds/H9EU))
- Bell Textron Canada Limited 206 ([TCDS H2SW](https://openairdocs.org/tcds/H2SW))
- Bell Textron Canada Limited 206A ([TCDS H2SW](https://openairdocs.org/tcds/H2SW))
- Bell Textron Canada Limited 206A-1 (OH-58A) ([TCDS H2SW](https://openairdocs.org/tcds/H2SW))
- Bell Textron Canada Limited 206B ([TCDS H2SW](https://openairdocs.org/tcds/H2SW))
- Bell Textron Canada Limited 206B-1 ([TCDS H2SW](https://openairdocs.org/tcds/H2SW))
- Bell Textron Canada Limited 206L ([TCDS H2SW](https://openairdocs.org/tcds/H2SW))
- Bell Textron Canada Limited 206L-1 ([TCDS H2SW](https://openairdocs.org/tcds/H2SW))
- Bell Textron Canada Limited 206L-3 ([TCDS H2SW](https://openairdocs.org/tcds/H2SW))
- Bell Textron Canada Limited 206L-4 ([TCDS H2SW](https://openairdocs.org/tcds/H2SW))
- Bell Textron Canada Limited 407 ([TCDS H2SW](https://openairdocs.org/tcds/H2SW))
- Leonardo S.p.a. A109 ([TCDS H7EU](https://openairdocs.org/tcds/H7EU))
- Leonardo S.p.a. A109A ([TCDS H7EU](https://openairdocs.org/tcds/H7EU))
- Leonardo S.p.a. A109A II ([TCDS H7EU](https://openairdocs.org/tcds/H7EU))
- Leonardo S.p.a. A109C ([TCDS H7EU](https://openairdocs.org/tcds/H7EU))
- Leonardo S.p.a. A109E ([TCDS H7EU](https://openairdocs.org/tcds/H7EU))
- Leonardo S.p.a. A109K2 ([TCDS H7EU](https://openairdocs.org/tcds/H7EU))
- Leonardo S.p.a. A109S ([TCDS H7EU](https://openairdocs.org/tcds/H7EU))
- Leonardo S.p.a. A119 ([TCDS H7EU](https://openairdocs.org/tcds/H7EU))
- Leonardo S.p.a. AW109SP ([TCDS H7EU](https://openairdocs.org/tcds/H7EU))
- Leonardo S.p.a. AW119 MKII ([TCDS H7EU](https://openairdocs.org/tcds/H7EU))
- Robinson Helicopter Company R44 ([TCDS H11NM](https://openairdocs.org/tcds/H11NM))
- Robinson Helicopter Company R44 II ([TCDS H11NM](https://openairdocs.org/tcds/H11NM))

## What the certificate says

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number SRO1153CH This certificate issued to: Appareo Systems. L.L.C 1810 NDSU Research Cirele North Fargo, ND 58102 Jurt 27 of the Federal Aviation Regulutions Original Product Type Certificut Sumber: See attached FAA Approved Model List (AML) No. SR04453CH Make: for list of approved airplane models and applicable airworthiness regulations.

Installation of Appareo Systems, LLC Stratus ES & Stratus ESG ADS-B transponder in accordance with the Apparco Systems Stratus ES/ESG STC Master Document List on FAA AML No. SR04453CH.

Limitations and bona

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

A copy of this certificate and AML No. SR04453CH must be maintained as part of the permanent records for the modified airerait.

3. FAA Approved Airplane Flight Manual Supplement identified on FAA AML No. SR04453CH is a required part of this moditication.

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.

suspended, rected er a terminati wise established by the . Administrator of the Tahral Aviatica Administration Lafe of appfiention: September 18.2019 Lut reissued:

Lute c/ issumner: March 11, 2020 Lute uneaded:

FEDERAL AVIATION Steven L. Lardinois TOMINISTRATOT Manager, Systems Section Chicago ACO Branch (Title)

### SR04453CH_AML.pdf

This is OCR from the scanned FAA attachment. OCR can misread letters and numbers.

FAA APPROVED MODEL LIST (AML) NO. SR04453CH Appareo Systems LLC.

FOR

THE INSTALLATION OF APPAREO SYSTEMS STRATUS ES & STRATUS ESG ADS-B Issue Date: March 11, 2020

**INSTALLATION**

**INSTRUCTIONS**

**ORIGINAL CERTIFICATION MASTER TYPE BASIS DOCUMENT REVISION NO. AFM AML**

**AIRCRAFT AIRCRAFT CERTIFICATE FOR LIST AND DATE SUPPLEMENT AMENDMENT**

ITEM MAKE MODEL NUMBER ALTERATION NUMBER/DATE DATE 1 Airbus AS350C, AS350D, AS350D1, HOEU 14 CFR Part 27 See NOTE 1 See NOTE 1 See NOTE 2 Helicopters AS350B, AS350B1, AS350B2, and Amendments AS350BA, AS350B3, EC130B4, identified in TCDS EC130T2 H9EU as amended by Appendix A 2 Airbus EC120B R0001RD 14 CFR Part 27 See NOTE 1 See NOTE 1 See NOTE 2 Helicopters and Amendments identified in TCDS R0001RD as amended by Appendix A 3 Bell 206, 206А. 206А-I (OH-58A). H2SW CAR 6 and See NOTE 1 See NOTE 1 See NOTE 2 Helicopter 206B, 206B-1, 206L. 206L-I, Amendments Textron 206L-3, 206L-4, 407 identified in TCDS Canada H2SW as amended Limited by Appendix A 4 Leonardo Model A109, Model A109A, Model H7EU 14 CFR Part 27 See NOTE 1 See NOTE 1 See NOTE 2 S.p.a. A109A II, Model A109C, Model and Amendments A109K2, Model A109E, Model identified in TCDS A119, Model A109S, Model HEU as amended AW119 MKII, Model AW109SP by Appendix A 5 Robinson R22, R22 Alpha, R22 Beta, R22 H10WE 14 CFR Part 27 See NOTE 1 See NOTE 1 See NOTE 2 Helicopter Mariner and Amendments Company identified in TCDS H10WE as amended by Appendix A Page 1 of 3

FAA APPROVED MODEL LIST (AML) NO. SR04453CH Appareo Systems LLC.

FOR

THE INSTALLATION OF APPAREO SYSTEMS STRATUS ES & STRATUS ESG ADS-B Issue Date: March 11, 2020 6 Robinson R44. R44 1I HIINM 14 CFR Part 27 See NOTE 1 See NOTE 1 See NOTE 2 Helicopter and Amendments Company identified in TCDS HIINM as amended by Appendix A NOTE 1: Appareo Systems, LLC Master Document List Document No. 606586-000107, Rev. 1.2, dated February 21, 2020, or later FAA approved revision.

NOTE 2: Apparco Systems, LLC Rotorcraft Flight Manual Supplement Doc. No. 606586-000112, Rev. 1.1, dated March 9, 2020 or later FAA approved revision.

FAA Approved Steven L. Lardinois Manager, Systems Section Chicago ACO Branch Page 2 of 3

FAA APPROVED MODEL LIST (AML) NO. SR04453CH Appareo Systems LLC.

FOR

THE INSTALLATION OF APPAREO SYSTEMS STRATUS ES & STRATUS ESG ADS-B Issue Date: March 11, 2020 Appendix A: All Models Based on 14 CFR §§ 21.115 and 21.101, and the FAA policy for significant changes in FAA Order 8110.48, the certification basis is as follows:

a. As determined by the Type Certificate Data Sheet (TCDS) of the aircraft for parts not changed or not affected by this STC.

Regulations at the amendment levels listed in Table 1 below for parts changed or affected by the STC since the reference date of STC application, September 18, 2019 Table 1: Certification Basis Including Amendments.

Regulations Amdt.

§ 27.301 (a)(b) 27-0 § 27.303 27-0 § 27.305 (a) 27-0 § 27.307 (a) 27-26 $ 27.561 (6)(3) 27-32 § 27.601 (a) 27-0 § 27.603 (a)(b)(c) 27-16 § 27.605 (a) 27-16 § 27.609 (a) 27-0 $ 27.613 (a)(b)(c)(d) 27-26 § 27.619 (a)(b) 27-0 § 27.625 (a) 27-35 § 27.771 (a)(b) 27-0 § 27.773 (a)(b) 27-50 § 27.777 (a)(b) 27-0 § 27.853 (a) 27-37 $ 27.1301 (a)(b)(c)(d) 27-0 § 27.1307 (d)(e) 27-0 § 27.1309 (a)(c) 27-46 § 27.1316 27-46 § 27.1317 (c) 27-42 § 27.1351 (a)(b) 27-13 § 27.1357 (a)(b)(c) 27-13 § 27.1365 (a)(b)(c) 27-35 § 27.1367 (b)(c) 27-0 § 27.1381 (a)(b) 27-0 § 27.1501 (a)(b) 27-14 $ 27.1529 27-18 § 27.1555 (a) 27-21 Page 3 of 3

## Every issue (1)

- March 11, 2020: Issued, Current. [certificate](https://openairdocs.org/files/sha256/ae/95/ae95497b91bbff22bcd5c7bd32ca932c4cd5382d4d1a353e5f77936d99762044), [SR04453CH_AML.pdf](https://openairdocs.org/files/sha256/67/87/678747eef3fbf6dc0d5459665ff2e0c9582acbdc0ea2ef37e0c21cebb351ff1b)

---
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.