# STC SR04842NY - Type: Supplemental type certificate - Status: Current, Amended - Holder: Sterling Helicopter, United States - Description: Installation of RMCI Inc. Expandable Rotorcraft Diagnostic System (XRDS) - Applied: July 5, 2022 - Status date: March 11, 2025 - Product: Aircraft, Rotorcraft - Certification basis: Part 27 - Data sheets: [TCDS H88EU](https://openairdocs.org/tcds/H88EU), [TCDS H2SW](https://openairdocs.org/tcds/H2SW), [TCDS R00008RD](https://openairdocs.org/tcds/R00008RD), [TCDS H7EU](https://openairdocs.org/tcds/H7EU) - Certificate PDF: https://openairdocs.org/files/sha256/b2/e8/b2e8464edf4dbe59c6192e170989c1b34c07bd72f4812d0f5cae1f44428ba158 - Approved model list and other attachments: [SR04842NY AML.pdf](https://openairdocs.org/files/sha256/4f/39/4f39404ef3b977b04c423714764f7c82b690761daa32f6b4b7a3e5d8a4ec92a9) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID121794308120250312050146.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SR04842NY ## ADs that name it (0) None. ## Approved models (29) - Airbus Helicopters Deutschland GmbH (AHD) EC135P1 ([TCDS H88EU](https://openairdocs.org/tcds/H88EU)) - Airbus Helicopters Deutschland GmbH (AHD) EC135P2 ([TCDS H88EU](https://openairdocs.org/tcds/H88EU)) - Airbus Helicopters Deutschland GmbH (AHD) EC135P2+ ([TCDS H88EU](https://openairdocs.org/tcds/H88EU)) - Airbus Helicopters Deutschland GmbH (AHD) EC135P3 ([TCDS H88EU](https://openairdocs.org/tcds/H88EU)) - Airbus Helicopters Deutschland GmbH (AHD) EC135T1 ([TCDS H88EU](https://openairdocs.org/tcds/H88EU)) - Airbus Helicopters Deutschland GmbH (AHD) EC135T2 ([TCDS H88EU](https://openairdocs.org/tcds/H88EU)) - Airbus Helicopters Deutschland GmbH (AHD) EC135T2+ ([TCDS H88EU](https://openairdocs.org/tcds/H88EU)) - Airbus Helicopters Deutschland GmbH (AHD) EC135T3 ([TCDS H88EU](https://openairdocs.org/tcds/H88EU)) - Airbus Helicopters Deutschland GmbH (AHD) EC635T2+ ([TCDS H88EU](https://openairdocs.org/tcds/H88EU)) - 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)) - Bell Textron Canada Limited 505 ([TCDS R00008RD](https://openairdocs.org/tcds/R00008RD)) - 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. AW109SP ([TCDS H7EU](https://openairdocs.org/tcds/H7EU)) - Leonardo S.p.A. AW119 MKII ([TCDS H7EU](https://openairdocs.org/tcds/H7EU)) ## 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. FAA Form 8110-2 (03/21) Page 1 of ___ SR04842NY Sterling Helicopter 1226 River Road Croydon, PA 19021 Title 14 Code of Federal Regulation 27 See attached FAA Approved Model List (AML) SR04842NY for the list of makes, models and applicable certification basis. See attached FAA AML 1. Installation of RMCI Inc. Expandable Rotorcraft Diagnostic System (XRDS) in accordance with Sterling Helicopter Master Drawing List as listed on FAA Approved Model List (AML) No. SR04842NY. 2. Maintenance to be performed in accordance with Sterling Helicopter Instructions for Continued Airworthiness (ICA) as listed on FAA Approved Model List (AML) No. SR04842NY. 1. Approval of this change in type design applies to aircraft listed on AML SR04842NY only. The installer must determine whether this design change is compatilbe with previoulsy approved modifications. 2. If the holder agrees to permit another person to use this certificate to alter a product, the holder must give this person written evidence of that permission. (continued to page 3/3) 7/5/22 3/11/2025 6/26/24 03/7/2025 Christina M. Underwood Manager, East Certification Branch Compliance & Airworthiness Division Aircraft Certification Service 3 3. A copy of this certificate, AML SR04842NY, and the applicable ICA must be maintained as part of the permanent records of the modified aircraft. 4. Data collected by this system cannot be used to revise, after, or supersede any maintenance intervals or procedures prescribed in the ICAs. This STC cannot be used to obtain airworthiness approval for rotorcraft Health Usage Monitoring System (HUMS) with maintenance credit validation. Certification Basis: Based on 14 CFR 21.115 and 21.101, and the FAA policy for significant changes in FAA Order 8110.48, the FAA certification bases for the aircraft listed on this AML is as follows: (a) The Type Certification basis for areas that have not been altered or impacted by this modification remain in accordance with the aircraft's relevant Type Certificate Data Sheet (TCDS) See AML SR04842NY for certifications basis. ------------------------------------------------------------------END---------------------------------------------------------------- 3 3 ### SR04842NY AML.pdf FAA APPROVED MODEL LIST (AML) No. SR04842NY Sterling Helicopter FOR Installation of RMCI Inc. Expandable Rotorcraft Diagnostic System (XRDS) Original Issue Date: June 26, 2024 Date Reissued: March 11,2025 ITEM AIRCRAFT MAKE AIRCRAFT MODEL TCDS CERTIFICATION BASIS MDL ICA INITIAL APPROVAL DATE AML AMENDMENT DATE 1 Airbus Helicopters Deutschland GmbH EC135P1 EC135P2 EC135P2+ EC135T1 EC135T2 EC135T2+ EC635T2+ EC135P3 EC135T3 H88EU 14 CFR Part 27, Amendment 27-0 through 27-31 ST-22-515-02 Rev. A, dated February 26, 2024 RMCI- 000204 Rev. 2 Dated May 9, 2024 June 26, 2024 March 7, 2025 2 Bell Textron Canada Limited 206 206A 206A-1 (OH-58A) 206B 206B-1 206L 206L-1 206L-3 206L-4 H2SW 14 CFR, CAR 6-0 through 6-5, and Part 27 Amendment 27-0 through 27-24 ST-22-515-02 Rev. A, dated February 26, 2024 RMCI- 000013 Rev. 4 Dated May 9, 2024 June 26, 2024 March 7, 2025 3 Bell Textron Canada Limited 407 H2SW 14 CFR Part 27 Amendment 27-0 through 27-28 ST-22-515-02 Rev. A, dated February 26, 2024 RMCI- 000017 Rev. 2 Dated May 9, 2024 June 26, 2024 March 7, 2025 4 Bell Textron Canada Limited 505 R00008RD 14 CFR Part 27 Amendment 27-0 through 27-47 RMCI-000129 Rev. 0, Dated August 29, 2024 RMCI-000279 Rev. 0 Dated June 12, 2024 February 28, 2025 March 7, 2025 ITEM AIRCRAFT MAKE AIRCRAFT MODEL TCDS CERTIFICATION BASIS MDL ICA INITIAL APPROVAL DATE AML AMENDMENT DATE 5 Leonardo S.p.a. A109 A109A A109A II A109C H7EU 14 CFR, Part 27 Amendment 27-0 through 27-8 RMCI-000261, Rev. 1, dated September 26, 2024 RMCI-000260 Rev. 1 dated September 25, 2024 February 28, 2025 March 7, 2025 A109K2 14 CFR, Part 27 Amendment 27-0 through 27-21 A109E 14 CFR, Part 27 Amendment 27-0 through 27-28 A109S 14 CFR, Part 27 Amendment 27-0 through 27-40 AW109SP 14 CFR, Part 27 Amendment 27-0 through 27-42 6 Leonardo S.p.a. AW119 AW119 MKII H7EU 14 CFR, Part 27 Amendment 27-0 through 27-38 RMCI-000271, Rev. 1, dated September 23, 2024 RMCI-000270 Rev. 1 dated September 16, 2024 February 28, 2025 March 7, 2025 1. Certification Basis for aircraft model item 1 to 3: Based on 14 CFR 21.115 and 21.101, and the FAA policy for significant changes in FAA Order 8110.48, the FAA certification basis for the aircraft listed on this AML is as follows: a. The certification Basis for areas that have not been altered or impacted by this modification remain in accordance with the aircraft’s relevant Type Certificate Data Sheets (TCDS). b. The Certificate Basis for parts changed or affected by the change since the reference date of application June 05, 2022, is based upon Part 27 as amended by amendment 27-31. Based on 14 CFR 21.115 and 21.101 and the FAA policy for significant changes in the FAA Order 8110.48, the certification basis for areas impacted by this modification was determined to be: 27.301(a)(b) [Amdt. 27-0], 27.303 [Amdt. 27-0], 27.305(a)(b) [Amdt. 27-0], 27.307(a) [Amdt. 27-26], 27.337(a) [Amdt. 27-26], 27.561(d) [Amdt. 27-30], 27.601(a) [Amdt. 27-0], 27.603 [Amdt. 27-16], 27.605 [Amdt. 27-16], 27.609 [Amdt. 27-0], 27.611(a)(b) [Amdt. 27-0], 27.613 [Amdt. 27-26], 27.619 [Amdt. 27-0], 27.625(a)(b) [Amdt. 27-0], 27.1357(a)(2)(c)(d) [Amdt. 27-13], 27.1365 [Amdt. 27-0], 27.1367 Amdt. 27-0], 27.1301 [Amdt. 27-0], 27.1307(e) [Amdt. 27-0], 27.1309 [Amdt. 27-21], 27.1351(a)(1)(2) [Amdt. 27-13], 27.1529 [Amdt. 27-18], 27 Appdx. A27.1 [Amdt. 27-18], 27 Appdx. A27.2 [Amdt. 27-18], 27 Appdx. A27.3 [Amdt. 27-18], 27 Appdx. A27.4 [Amdt. 27-24]. 2. Certification Basis for aircraft model item 4 to 6 Based on 14 CFR 21.115 and 21.101, and the FAA policy for significant changes in FAA Order 8110.48, the FAA certification basis for the aircraft listed on this AML is as follows: a. The certification Basis for areas that have not been altered or impacted by this modification remain in accordance with the aircraft’s relevant Type Certificate Data Sheets (TCDS). b. The Certificate Basis for parts changed or affected by the change since the reference date of application June 05, 2022, is based upon Part 27 as amended by amendment 27-47. Based on 14 CFR 21.115 and 21.101 and the FAA policy for significant changes in the FAA Order 8110.48, the certification basis for areas impacted by this modification was determined to be: 27.601(a) [Amdt. 27-0], 27.603 [Amdt. 27-16], 27.605(a) [Amdt. 27-16], 27.609(a) [Amdt. 27-0], 27.611(a) [Amdt. 27-0], 27.1301 [Amdt. 27-0], 27.1307(e) [Amdt. 27-0], 27.1357(a)(2)(c)(d) [Amdt. 27-13], 27.1365 [Amdt. 27-35], 27.1367 [Amdt. 27-0], 27.1301 [Amdt. 27-0], 27.1309(c) [Amdt. 27-46], 27.301(a)(b) [Amdt. 27-0], 27.303 [Amdt. 27-0], 27.305(a)(b) [Amdt. 27-0], 27.307(a) [Amdt. 27-26], 27.337(a) [Amdt. 27-26], 27.561(c) [Amdt. 27-32], 27.613 [Amdt. 27-26], 27.619 [Amdt. 27-0], 27.625(a)(b) [Amdt. 27-35], 27.1351(a)(1)(2) [Amdt. 27-13], 27.1529 [Amdt. 27-18], 27 Appdx. A27.1 [Amdt. 27-18], 27 Appdx. A27.2 [Amdt. 27-18], 27 Appdx. A27.3 [Amdt. 27-18], 27 Appdx. A27.4 [Amdt. 27-47]. Equivalent Level of Safety for AW109S: 14 CFR §27.1305, §27.1521, §27.1549, §27.1309(c), §29.1309(b)(2)(i) and (d): Power Index Indicator FAA Approved: Christina M. Underwood Manager, East Certification Branch Compliance & Airworthiness Division Aircraft Certification Service ## Every issue (2) - March 11, 2025: Amended, Current. [certificate](https://openairdocs.org/files/sha256/b2/e8/b2e8464edf4dbe59c6192e170989c1b34c07bd72f4812d0f5cae1f44428ba158), [SR04842NY AML.pdf](https://openairdocs.org/files/sha256/4f/39/4f39404ef3b977b04c423714764f7c82b690761daa32f6b4b7a3e5d8a4ec92a9) - June 26, 2024: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/68/80/6880f276c4a9d83f1f452b63f41a5cb1cedd8f3f9b337b47d38e9b9c07a53784), [SR04842NY_AML.pdf](https://openairdocs.org/files/sha256/5d/24/5d24b023b5b3341203a5971587fd85e4d118fb6655c9768f9328ffad90a27d7b) --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). 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