# STC SH5258NM

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Air Comm Corporation, United States
- Description: Installation of a cabin ventilation system.
- Applied: November 6, 1991
- Status date: November 24, 2014
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS H2SW](https://openairdocs.org/tcds/H2SW)
- Certificate PDF: https://openairdocs.org/files/sha256/72/ea/72ea3fa2ff9d043b4b3b37e4d6feb214a07d602586439f87c00d53954ae4492c
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8A094A7CC49F9F2086257DF7006C0B39.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SH5258NM

## ADs that name it (0)

None.

## Approved models (5)

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

United States of America Department of Transportation - Federal Aviation Administration Supplemental Type Certificate Number SH5258NM

Date of application: November 6, 1991 Date reissued: November 24, 2014 Date of issuance: July 30, 1992 Date amended:

Todd Dixon (Signature) Manager, Denver Aircraft Certification Office Northwest Mountain Region (Title)

This certificate, issued to Air Comm Corporation 1575 West 124th Ave Westminster, CO 80234

Part 6 of the Civil Air Regulations.

Original ProductType Certificate Number: H2SW Make: Bell Helicopter Textron, Inc Model: 206A, 206B, 206L, 206L-1, 206L-3 Description of the Type Design Change:

Installation of a Cabin Ventilation System in accordance with Air Comm Corporation Master Drawing List Report No.

DL-206V, Revision B, dated July 28, 1992 or later FAA Approved revision.

1. STC SH3887NM, which installs the Air Comm Corporation Cabin Heater System and / or the Windshield Defroster System, is a required to be installed to support this STC.

2. FAA Approved Rotorcraft Flight Manual Supplement No. 206V-100, dated July 30, 1992 or later FAA Approved revision is required for the Bell Model 206A and 206B.

3. FAA Approved Rotorcraft Flight Manual Supplement No. 206V-200, dated July 30, 1992, or later FAA Approved revision is required is required for the Bell Model 206L, 206L-1 and 206L-3.

United States of America Department of Transportation - Federal Aviation Administration Supplemental Type Certificate Number SH5258NM (Continuation Sheet)

4. Approval of this change in type design applies to the model of aircraft listed above only.

5. Compatibility of this design change with previously approved alterations must be determined by the installer.

6. If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

7. A copy of this certificate and the appropriate flight manual supplement as listed above must be maintained as part of the permanent record for the altered aircraft.

----------------------------------------------------END--------------------------------------------------------------

## Every issue (3)

- November 24, 2014: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/72/ea/72ea3fa2ff9d043b4b3b37e4d6feb214a07d602586439f87c00d53954ae4492c)
- August 15, 2014: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/1c/3c/1c3cb6c3ffcf0b0066284846d3cbbceacea768d38051bde2280fddf6dd38e617)
- July 30, 1992: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/50/8a/508a8d445eaa68cc1e6df060e4bd682000cf57cf69799ccd892e79a477b3d7fc)

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