# STC SH3644NM

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: USA Airmobile, Inc, United States
- Description: Installation of Transporter cargo steps (left and right). Applies only to those Bell models which are fitted with Bell high skid landing gear, p/n 206-706-064.
- Applied: October 19, 1987
- Status date: August 15, 2018
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21, Part 27
- Data sheets: [TCDS H2SW](https://openairdocs.org/tcds/H2SW)
- Certificate PDF: https://openairdocs.org/files/sha256/3e/13/3e13ca80f60a19be1ebc5081428527f1e5fcd7095a360ceb7a2fdebd381d5358
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/233B1A625B3B15EB862582F700641A17.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SH3644NM

## ADs that name it (0)

None.

## Approved models (3)

- Bell Helicopter Textron (Canada) 206L-1 ([TCDS H2SW](https://openairdocs.org/tcds/H2SW))
- Bell Helicopter Textron (Canada) 206L-3 ([TCDS H2SW](https://openairdocs.org/tcds/H2SW))
- Bell Helicopter Textron Canada Limited 206L-4 ([TCDS H2SW](https://openairdocs.org/tcds/H2SW))

## 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.

H2SW Bell Helicopter Textron (Canada) 206L-1, 206L-3 (*Part 6 of the Civil Air Regulations) 206L-4 (*Part 27 of the Federal Aviation Regulations) Fabrication and installation of “Transporter” cargo steps (left and right) in accordance with Aero Twin, Inc. Master Drawing List No. TS-B206LR dated November 7, 2001, or later FAA approved revision.

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

2. 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.

3. This approval applies only to those Bell Helicopter Textron (Canada) Models 206L-1, 206L-3 and 206L-4 rotorcraft which are equipped with Bell Helicopter Textron (Canada) high skid gear P/N 206-706-064.

4. The appropriate Rotorcraft Flight Manual Supplement, FAA Approved Rotorcraft Flight Manual Supplement for the Bell Model 206L-1 Helicopter, dated March 22, 1988, FAA Approved Rotorcraft Flight Manual Supplement for Bell Model 206L-3 Helicopter, dated March 22, 1988, or FAA Approved Rotorcraft Flight Manual Supplement for Bell Model 206L-4 Helicopter, dated September 19, 2008, or later FAA approved revision(s), is a required part of this installation.

January 06, 1994; November 07, 2001;

August 15, 2018

November 07, 2001; September 29, 2008

(Signature) August A. Asay Manager, Anchorage ACO

(Title)

USA Airmobile, Inc.

4121 SW 47th Ave., Suite 1305 Fort Lauderdale, FL 33314

October 19, 1987

March 22, 1988

## Every issue (1)

- August 15, 2018: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/3e/13/3e13ca80f60a19be1ebc5081428527f1e5fcd7095a360ceb7a2fdebd381d5358)

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