# STC SH7923SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Apical Industries, Inc. dba Dart Aerospace, United States
- Description: Installation of an auxiliary generator power system.
- Applied: December 6, 1989
- Status date: August 19, 2014
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21, Part 29
- Data sheets: [TCDS H4SW](https://openairdocs.org/tcds/H4SW)
- Certificate PDF: https://openairdocs.org/files/sha256/41/15/41159f70aa01ce49a24a7327e282155b4dfea6920fa0be0418929e1d9dc2a169
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8F517F48A803A6DE86257D95006F06D8.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SH7923SW

## ADs that name it (0)

None.

## Approved models (1)

- Bell Helicopter Textron Inc. 412 ([TCDS H4SW](https://openairdocs.org/tcds/H4SW))

## 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.

Part 29 of the Federal Aviation Regulations.

Installation of an auxiliary generator power system in accordance with SFENA Corporation Master Drawing List B00-13002, revision B, dated October 18, 1990, or later FAA approved revision.

FAA approved rotorcraft Flight Manual Supplement (RFMS) B09-62003, dated October 26, 1990, or later FAA approved revision is required. The installer must determine whether this design change is compatible with previously approved modifications. 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 this permission.

Apical Industries, Inc. dba Dart Aerospace 3030 Enterprise Court, Suite A Vista, California 92018 Make :

Date of application : December 06, 1989

Date of issuance : October 26, 1990

Date reissued: March 28, 1991, January 17, 2002, November 27, 2007, August 19, 2014

(Signature) Supervisor, Technical and Administrative Support Staff Los Angeles Aircraft Certification Office

(Title)

H4SW Bell Helicopter Textron, Inc.

## Every issue (1)

- August 19, 2014: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/41/15/41159f70aa01ce49a24a7327e282155b4dfea6920fa0be0418929e1d9dc2a169)

---
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.