# STC SH2138SO

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Heliplane Aircraft Corporation International, United States
- Description: Modification of the exhaust and the addition of a muffler and re-contoured engine cowling in accordance with Farrington Aircraft Corp. installation instructions dated February 27, 1987 and Master Drawing List revised August 23, 1987.
- Applied: October 24, 1985
- Status date: June 27, 2011
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS 1H17](https://openairdocs.org/tcds/1H17)
- Certificate PDF: https://openairdocs.org/files/sha256/5e/59/5e59ed4ab9cc243b8dd5a3c0995fcf710c6f003aa615087694eb84c592f0dab1
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F5FE35E26673B11C862578D30071FF62.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SH2138SO

## ADs that name it (0)

None.

## Approved models (1)

- Air & Space America Inc. 18A ([TCDS 1H17](https://openairdocs.org/tcds/1H17))

## 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.

This certificate issued to

Part 6 of the Civil Air Regulations.

(See T.C. Data Sheet 1H17 for complete certification basis.)

Description of Type Design Change: Modification of the exhaust and the addition of a muffler and recontoured engine cowling in accordance with Farrington Aircraft Corp. installation instructions dated February 27, 1987 and Master Drawing List revised August 23, 1987.

Limitations and Conditions: This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporated unless it is determined by the installer that the interrelationship between this change and any of those other previously approved modifications will produce no adverse effect upon the airworthiness of that aircraft. 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.

Heliplane Aircraft Corporation International 1821 North US Highway 1 Ft. Pierce, Florida 34946 1H17 Make : Air and Space Manufacturing, Inc.

Model : 18A Date of application : October 24, 1985

Date of issuance : September 9, 1987

Date reissued : June 27, 2011, July 27, 2011

( Signature) Melvin D. Taylor Manager, Atlanta Aircraft Certification Office

( Title)

## Every issue (1)

- June 27, 2011: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/5e/59/5e59ed4ab9cc243b8dd5a3c0995fcf710c6f003aa615087694eb84c592f0dab1)

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