# STC SR00174DE

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Air Comm Corporation, United States
- Description: Installation of vapor cycle air conditioning system.
- Applied: January 26, 1995
- Status date: July 31, 1995
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS H19NM](https://openairdocs.org/tcds/H19NM)
- Certificate PDF: https://openairdocs.org/files/sha256/85/32/853257f759992e0e24b0a337c30f0528027c14f622bea9aac5de15f10f012acd
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F856941B6FCDB56085256CC2006224B1.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SR00174DE

## ADs that name it (0)

None.

## Approved models (1)

- MD Helicopter Inc. MD900 ([TCDS H19NM](https://openairdocs.org/tcds/H19NM))

## 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 SRO0174DE This certificate issued to: Air Comm Corporation Part 27 of the Federal Aviation Regulations.

Original Product -Type Certificate Number: H19NM Make: McDonnell Douglas Helicopter Systems Model: MD-900 Description of Type Design Change:

Installation of Vapor Cycle air Conditioning system in accordance with Air Comm Corp. Master Drawing List Report DL-MD900AC, initial release, dated March 31, 1995, or later FAA approved revision.

1. FAA Approved Rotorcraft Flight Manual Supplement, dated July 31, 1995 or later FAA approved revision is required.

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

Date of Application: January 26, 1995 Date Reissued:

Date of Issuance: July 31, 1995 Date Amended:

FEDERAL AVIATION Be denie to thing i Me RONALD F. MAY (Signature) Manager *OMINIST RATION Denver Aircraft Certification Office Northwest Mountain Region, Denver, Colorado (Title)

## Every issue (1)

- July 31, 1995: Issued, Current. [certificate](https://openairdocs.org/files/sha256/85/32/853257f759992e0e24b0a337c30f0528027c14f622bea9aac5de15f10f012acd)

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