# STC SH4476NM

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Air Methods Corporation, United States
- Description: Installation of composite subfloor assembly attached to existing aircraft floor.
- Applied: September 23, 1987
- Status date: July 9, 2008
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS H13EU](https://openairdocs.org/tcds/H13EU)
- Certificate PDF: https://openairdocs.org/files/sha256/54/a3/54a3ff40774660bd1d2225168d84983ad7e6bfc7e1f2d2bf5a91c2708503b3ef
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/392162F4622F3BD1862574910055EF79.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SH4476NM

## ADs that name it (0)

None.

## Approved models (3)

- Eurocopter Deutschland GmbH MBB-BK 117 A-1 ([TCDS H13EU](https://openairdocs.org/tcds/H13EU))
- Eurocopter Deutschland GmbH MBB-BK 117 A-3 ([TCDS H13EU](https://openairdocs.org/tcds/H13EU))
- Eurocopter Deutschland GmbH MBB-BK 117 B-1 ([TCDS H13EU](https://openairdocs.org/tcds/H13EU))

## 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: SH4476NM This certificate issued to: Air Methods Corporation 7301 South Peoria Street Englewood, Colorado 80112 Part 27 of the Federal Aviation Regulations.

Original Product - Type Certificate Number: H13EU Make: Messerschmitt-Bolkow-Blohm GMBH Model: MBB-BK117A-1, MBB-BK117A-3, A-4, B-1 Description of Type Design Change:

Installation of composite subfloor assembly attached to existing aircraft floor in accordance with sealed installation instructions RMHII 042188, revision original dated April 21, 198 or later FAA approved revision.

Parts manufactured in accordance with FAA sealed Rocky Mountain Helicopter, Master Drawing List No.

MDL-031588, Revision B, dated May 5, 1988 or later FAA Approved revision.

This approval should not be extended to other aircraft of these models on which other previously approved modifications are incorporated unless it is determined that the interrelationship between this change and any other previously approved modifications, including changes in type design, will introduce no adverse effect upon the airworthiness of that aircraft.

Date of Application: September 23, 1987 Date Reissued: 3/24/95, July 9, 2008 Date of Issuance: June 15, 1988 Date Amended:

FEDERAL AVIATION By Direction of the Administrator essa landon Melissa Sandow (Signature) ADMINIST RATION Northwest Mountain Region Senior Engineer Denver Aircraft Certification Office (Title)

## Every issue (1)

- July 9, 2008: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/54/a3/54a3ff40774660bd1d2225168d84983ad7e6bfc7e1f2d2bf5a91c2708503b3ef)

---
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.