# STC SR03403CH

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: STERLING HELICOPTER, United States
- Description: Installation of universal internal mount for electrical equipment provisions
- Applied: July 11, 2014
- Status date: December 5, 2023
- Product: Aircraft, Rotorcraft
- Certification basis: Part 27
- Data sheets: [TCDS H11NM](https://openairdocs.org/tcds/H11NM)
- Certificate PDF: https://openairdocs.org/files/sha256/e2/4c/e24c86b409545140d0f2f3057ce067f55d55af08369697959f69a5b46b8d62b9
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID101859851420240227171729.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SR03403CH

## ADs that name it (0)

None.

## Approved models (2)

- 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

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 ___ SR03403CH Sterling Helicopter 1226 River Road Croydon, PA 19021 the Federal Aviation Regualtions Part 27 Robinson Helicopter Company R44 and R44 II H11NM Installation of universal internal mount for electrical equipment provisions in accordance with St.

Louis Helicopter Master Drawing List 310-002-MDL, Revision 2, dated November 17, 2014, or later FAA approved revision.

1. A copy of this certificate must be maintained as part of the permanent records for the modified aircraft.

(See Continuation Sheet) July 11, 2014 January 11, 2018; October 7, 2020;

December 5, 2023 November 25, 2014 Paul (Vu) Nguyen Manager - Central Certification Branch (AIR-760) Compliance and Airworthiness Division Federal Aviation Administration 3 for

Limitations and Conditions - Continued:

2. The installer must determine whether this design change is compatible with previously approved modification.

3. 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.

4. FAA approved Rotorcraft Flight Manual Supplement, St. Louis Helicopter Document No.

310-023RFMS, Rev: 0, approved November 25, 2014, or later FAA approved revision, is required on board the modified aircraft.

5. STC makes provisions for internal electrical equipment but does not include approval of the equipment. The FAA has not certified the equipment for which these provisions are intended.

You must get additional FAA approval to install this equipment.

-------------------------------------------------------END------------------------------------------------------ 3 3

## Every issue (4)

- December 5, 2023: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/e2/4c/e24c86b409545140d0f2f3057ce067f55d55af08369697959f69a5b46b8d62b9)
- October 7, 2020: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/ba/d7/bad7f0785108c64d36197f44a340a35d57a4e6a528067a890138afc45f0d1432)
- January 11, 2018: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/fb/0c/fb0ca5105ee240c1c2de9ea139968aeefe24464ea34831087b86e8f9aa1f2571)
- November 25, 2014: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/7a/b9/7ab943600ee770a8c9e63c5f0716eb3ae9d744a7ba2f5baa7ee19236620d99ec)

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