# STC SA7170SW-D

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC manual electric trim system, Model ST-419.
- Applied: January 20, 1988
- Status date: January 25, 1988
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A23](https://openairdocs.org/tcds/3A23)
- Certificate PDF: https://openairdocs.org/files/sha256/56/64/56640b3cfd467843db3dd78e3e07a740e97a9bb891a51702ab9947ff70a796e9
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/6FA5F7555374BE4B85256CC20056A1D1.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA7170SW-D

## ADs that name it (0)

None.

## Approved models (3)

- Maule Aerospace Technology Inc. Bee Dee M-5-235C ([TCDS 3A23](https://openairdocs.org/tcds/3A23))
- Maule Aerospace Technology Inc. Bee Dee M-6-235 ([TCDS 3A23](https://openairdocs.org/tcds/3A23))
- Maule Aerospace Technology Inc. Bee Dee MX-7-235 ([TCDS 3A23](https://openairdocs.org/tcds/3A23))

## 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 SA7170SW-D This certificate issued to: S-TEC Corporation Rt. 4, Bldg. 946 Wolters Industrial Complex Mineral wells, lexas /60b/ Part 3 of the CiVIl Air Regulations:

Original Product -Type Certificate Numben: 3A23 Make: Maule Model: M-5-235C, M-6-235 and MX-7-235 Description of Type Design Change:

Installation of S-TEC Manual Electric Trim System, Model ST-419, according to Bulletin No. 519, dated 1-15-88 and Master Drawing List No. 92465, dated 1-15-88 and/or later FAA Approved revisions of the above data (14 Volt System).

1. FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 89771, dated 1-25-88 is required and/or later FAA Approved revisions of the above supplement.

2. Compatability of this modification with other previously approved modifications must be determined by the installer.

Date of Application: 1-20-88 Date Reissued:

Date of Issuance: . 1-25-88 Date Amended:

FEDERAL AVIATION By Direction of the Administrator Tarold I Helena (Signature ) AOMINIST TION Harold W. Holdeman DAS Staff Coordinator, DAS 5 SW (Title)

47.

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) (Number and street) (City, State, and Z1P code) from (Name of grantor) (Print or type) (Address of grantor) (Number and street) (City, State, and Z1P code) Exent of Authority (if licensing agreement) :

Signature of grantor (1n ink) :

## Every issue (1)

- January 25, 1988: Issued, Current. [certificate](https://openairdocs.org/files/sha256/56/64/56640b3cfd467843db3dd78e3e07a740e97a9bb891a51702ab9947ff70a796e9)

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