# STC SR00643DE

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Air Comm Corporation, United States
- Description: Installation of a vapor cycle cabin airconditioning system
- Applied: June 25, 2007
- Status date: July 22, 2026
- Product: Aircraft, Rotorcraft
- Certification basis: Part 27, Part 21
- Data sheets: [TCDS H9EU](https://openairdocs.org/tcds/H9EU)
- Certificate PDF: https://openairdocs.org/files/sha256/80/e3/80e317fdfd8c67ff3c229980831ea4c69c6c7a525892811fc13623ba27e95487
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID139110530520260723162557.0001
- DRS record last changed: July 23, 2026
- Page: https://openairdocs.org/stc/SR00643DE

## ADs that name it (0)

None.

## Approved models (8)

- Airbus Helicopters AS-350B ([TCDS H9EU](https://openairdocs.org/tcds/H9EU))
- Airbus Helicopters AS-350B1 ([TCDS H9EU](https://openairdocs.org/tcds/H9EU))
- Airbus Helicopters AS-350B2 ([TCDS H9EU](https://openairdocs.org/tcds/H9EU))
- Airbus Helicopters AS-350B3 ([TCDS H9EU](https://openairdocs.org/tcds/H9EU))
- Airbus Helicopters AS-350BA ([TCDS H9EU](https://openairdocs.org/tcds/H9EU))
- Airbus Helicopters AS-350C ([TCDS H9EU](https://openairdocs.org/tcds/H9EU))
- Airbus Helicopters AS-350D ([TCDS H9EU](https://openairdocs.org/tcds/H9EU))
- Airbus Helicopters AS-350D1 ([TCDS H9EU](https://openairdocs.org/tcds/H9EU))

## 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.

SR00643DE Air Comm Corporation 1575 West 124th Ave Westminster, CO 80234 Part 27 Title 14, Code of Federal Regulations H9EU Airbus Helicopters See Continuation Sheet Page 3 of 3 Pages

1. Approval of this change in type design applies only to the models of aircraft listed above and on the continuation sheet(s).

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

(See Continuation Sheet Page 3 of 3 Pages) 06/25/2007 11/24/2014 10/16/2007 07/22/2026 for Manager, West Certification Branch 3 Installation of Cabin Air Conditioning System in accordance with Air Comm Corporation Master Installation Drawing List – AS350 Cabin Air Conditioning System, Document No.

DL-AS350-MIDL, Revision AD, dated April 14, 2026, or later Federal Aviation Administration (See Continuation Sheet Page 3 of 3 Pages)

SR00643DE 3

SR00643DE Date of Issuance: October 16, 2007 Date amended: July 22, 2026

Model (continued):

AS350C, AS350D, AD350D1, AS350B, AS350B1, AS350B2, AS350BA, AS350B3

Description of Type Design Change (continued):

(FAA) approved revision. Maintained in accordance with Instructions for Continued Airworthiness, Air Comm Corporation Report AS350-200M-1, Revision 12, dated September 19, 2025, or later FAA accepted revision. Operated in accordance with Rotorcraft Flight Manual Supplement, Document No. AS350-1, Revision Original dated August 10, 2007, or later FAA approved revision.

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. 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 - 3 3 Add Page

## Every issue (4)

- July 22, 2026: Amended, Current. [certificate](https://openairdocs.org/files/sha256/80/e3/80e317fdfd8c67ff3c229980831ea4c69c6c7a525892811fc13623ba27e95487)
- November 24, 2014: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/43/2e/432e269f33585cde80826d29c41a02428def700cf5bd27e4601d218cb20d3c14)
- August 25, 2014: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/4c/4d/4c4da97a1ce3f05a2e43539e595e67318f0f8c18f13e5ca7ce30bcbaa410352d)
- October 16, 2007: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/61/55/6155f1465cc5f15cfa4cda67ff6019b293ac5bae2bd6fdca1a68fec3b10a13da)

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