# STC SH2387NM

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Croman Corporation, United States
- Description: Installation of a vacuum powered horizontal situation indicator system to supplement the existing electrical system.
- Applied: April 26, 1984
- Status date: May 29, 1984
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS H2SW](https://openairdocs.org/tcds/H2SW)
- Certificate PDF: https://openairdocs.org/files/sha256/1a/c9/1ac948dbe59a8c052c32e5ba12912a4868f18742da350dc3605787443e270ad2
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B9BDC58C9FB38FDE85256CC2005C2FD3.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SH2387NM

## ADs that name it (0)

None.

## Approved models (1)

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

## 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: SH2387NM This certificate issued to: Croman Corporation Part 6 of the CIVil Air Regulations Original Product — Type Certificate Amber H2SW Make Bell Mustel: 206B Description of Type Design Change:

Installation of a vacuum powered horizontal situation indicator system to supplement the existing electrical system in accordance with Croman Corporation Descriptive Data Package Number B206-HS1, dated May 28, 1984, or later FAA Approved Revision.

Limitali and fedium: Data pertaining to this modification are considered inadequati for duplication in other aircraft. This approval is limited to the installation of a vacuum powered horizontal situation indicator on Bell Model 206B Rotorcraft, Serial Number 2052, Registration Number N124DA, only. The modified rotorcraft must be operated in accordance with an FAA approved copy of the Rotorcraft Flight Manual Supplement dated May 29, 1984, or later FAA Approved Revision. A copy of this Certificate and the Rotorcraft Flight Manual Supplement must be carried in the rotorcraft at all times.

Date of Application: April 26, 1984 Date Reissued:

Tale of esuano May 29, 1984 Date Amended:

FEDERAL AVIATION By Direction of the Administrator D. L. Keggun Signatori TOMINISTRATOS Acting Manager, Seattle Aircraft Certification Office

47.

FAA FoR 8110-2/10-68)

## Every issue (1)

- May 29, 1984: Issued, Current. [certificate](https://openairdocs.org/files/sha256/1a/c9/1ac948dbe59a8c052c32e5ba12912a4868f18742da350dc3605787443e270ad2)

---
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.