# STC SR04175AT

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Thoroughbred Aviation Maintenance Inc, United States
- Description: Installation of the HT400 Inspection Panel Kit
- Applied: November 12, 2013
- Status date: February 25, 2022
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21, Part 27
- Data sheets: [TCDS H3WE](https://openairdocs.org/tcds/H3WE)
- Certificate PDF: https://openairdocs.org/files/sha256/34/55/34551b60b41e93f4b02fca7cfdd3d2a4c9e81df024c8180caae567161b70f38a
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9483F6467B432809862587F700734271.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SR04175AT

## ADs that name it (0)

None.

## Approved models (8)

- MD Helicopters Inc. 369D ([TCDS H3WE](https://openairdocs.org/tcds/H3WE))
- MD Helicopters Inc. 369E ([TCDS H3WE](https://openairdocs.org/tcds/H3WE))
- MD Helicopters Inc. 369F ([TCDS H3WE](https://openairdocs.org/tcds/H3WE))
- MD Helicopters Inc. 369FF ([TCDS H3WE](https://openairdocs.org/tcds/H3WE))
- MD Helicopters Inc. 369H ([TCDS H3WE](https://openairdocs.org/tcds/H3WE))
- MD Helicopters Inc. 369HE ([TCDS H3WE](https://openairdocs.org/tcds/H3WE))
- MD Helicopters Inc. 369HM ([TCDS H3WE](https://openairdocs.org/tcds/H3WE))
- MD Helicopters Inc. 369HS ([TCDS H3WE](https://openairdocs.org/tcds/H3WE))

## What the certificate says

The certificate has no text we could read; open the PDF to read it.

## Every issue (3)

- February 25, 2022: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/34/55/34551b60b41e93f4b02fca7cfdd3d2a4c9e81df024c8180caae567161b70f38a)
- September 30, 2014: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/6b/03/6b036e2afc358f482542ef4b01ef8a12d2d67ece0e8c861a27742ea74718c9f1)
- September 12, 2014: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/e7/1e/e71e1a0d6506262dea4f52ee416b271177dacbf9ba333bb8fb991cabfe73a1e9)

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