# STC SA2375NM

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Helicopter Management Systems, United States
- Description: Installation of an Avco Lycoming 0-360-D2A
- Applied: May 24, 1983
- Status date: April 25, 1984
- Product: Aircraft
- Certification basis: Part 21
- Data sheets: [TCDS A21CE](https://openairdocs.org/tcds/A21CE)
- Certificate PDF: https://openairdocs.org/files/sha256/95/0d/950ddc771633dd6b6986bdafb04b18c58d69e9598847cf76d31883fa90766e4e
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/1C9B59C24F8F93D4862579DB0076D7EF.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2375NM

## ADs that name it (0)

None.

## Approved models (1)

- American Champion Aircraft Corp. 8GCBC ([TCDS A21CE](https://openairdocs.org/tcds/A21CE))

## 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: SA2375NM This certificate issued to: Helicopter Management Systems Part 23 of the Federal Aviation Regulations Original Product - Type Certificate Number: A2 ICE Make Bellanca Model: 8GCBC Description of Type Design Change:

Installation of an Avco Lycoming 0-360-D2A engine and a McCauley 1A200HFA80-38 propeller per Helicopter Management Systems Installation Instructions HMS-001 dated April 25, 1984 and photographs (1) through (3) and later FAA approved revisions.

Data pertaining to this modification are considered inadequate for duplication in other aircraft. This approval is limited to the installation in Bellanca 8GCBC, Serial Number 53-74 only. A copy of this Certificate and FAA Approved Flight Manual Supplement shall be maintained as part of the permanent records for the modified aircraft.

April 25, 1984 Date Amended:

FEDERAL AVIATION By Direction of the Administrator (Signature) TAMINIST RAIDS Manager, Seattle Aircraft Certification Offic (Title )

## Every issue (1)

- April 25, 1984: Issued, Current. [certificate](https://openairdocs.org/files/sha256/95/0d/950ddc771633dd6b6986bdafb04b18c58d69e9598847cf76d31883fa90766e4e)

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