# STC SR18BO

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Fuller Howard J Jr, United States
- Description: Installation of a low rotor RPM voice warning system.
- Applied: September 23, 1993
- Status date: July 2, 2004
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21, Part 27
- Data sheets: [TCDS H10WE](https://openairdocs.org/tcds/H10WE)
- Certificate PDF: https://openairdocs.org/files/sha256/1e/d3/1ed31a70d7dae4d15f29385a36eea0ca41f629fe6d6fab70523be4f003d1653e
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/1178239083E9DA1986256EEB0063F941.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SR18BO

## ADs that name it (0)

None.

## Approved models (4)

- Robinson Helicopter Company R22 ([TCDS H10WE](https://openairdocs.org/tcds/H10WE))
- Robinson Helicopter Company R22 ALPHA ([TCDS H10WE](https://openairdocs.org/tcds/H10WE))
- Robinson Helicopter Company R22 BETA ([TCDS H10WE](https://openairdocs.org/tcds/H10WE))
- Robinson Helicopter Company R22 MARINER ([TCDS H10WE](https://openairdocs.org/tcds/H10WE))

## 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.

Number SR18BO This Certificate issued to Howard J. Fuller, Jr.

99 Boylston Circle Shrewsbury, MA 01545

Part 27 of the Federal Aviation Regulations.

Original Product Type Certificate Number : H10WE Make : Robinson Helicopter Company

Model : R-22, R-22 Alpha, R-22 Beta, R-22 Mariner

Installation of a low rotor RPM Voice Warning System in accordance with Howard J. Fuller, Jr., R-22 VWS Installation Instruction No. 9405, dated May 6, 1994, or later FAA-approved revisions.

1. Howard J. Fuller, Jr. Rotorcraft Flight Manual Supplement No. VWS22, rev. 2, dated July 2, 2004, or later FAA-approved revision, is required and must be carried in the helicopter during all flights.

2. Compatibility of this design change with other previously approved modifications must be determined by the installer.

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.

Date of application : September 23, 1993

Date of issuance : June 14, 1994 Date reissued : July 2, 2004

( Signature) Robert G. Mann Manager Boston Aircraft Certification Office

(Title)

## Every issue (1)

- July 2, 2004: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/1e/d3/1ed31a70d7dae4d15f29385a36eea0ca41f629fe6d6fab70523be4f003d1653e)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.