# STC SA5353SW-D

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC System 60 single axis automatic flight guidance system, Model ST-248.
- Applied: October 17, 1984
- Status date: November 28, 1984
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 1A10](https://openairdocs.org/tcds/1A10)
- Certificate PDF: https://openairdocs.org/files/sha256/1f/63/1f636ef17ef049c285b9b91e256d2e3bf572f003343a30f71b004dc06df9ed06
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B1A3BD019E1F6EF385256CC200122894.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA5353SW-D

## ADs that name it (0)

None.

## Approved models (2)

- Piper Aircraft Inc. PA-23-250 ([TCDS 1A10](https://openairdocs.org/tcds/1A10))
- Piper Aircraft Inc. PA-E23-250 ([TCDS 1A10](https://openairdocs.org/tcds/1A10))

## 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 SA5353SW-D This certificate issued to: 11. S-TEC Corporation Rt. 4, Bldg. 946 Wolters Industrial Complex Mineral Wells, TX 76067 Part 3 of the CiVIl Air Regulations.

Original Product - Type Pertificate Number: 1A10 Make: PIPER Model: PA-23-250 AND PA=E23-250 Description of Type Design Change:

Installation of S-TEC System 60 Single Axis Automatic Flight Guidance System, Model ST-248, according to Bulletin No. 348, dated 10-04-84 and Master Drawing List No. 92290, dated 10-04-84 and/or later FAA Approved revisions of the above data (14 Volt System).

1. Only eligible on Piper Models PA-23-250 and PA-E23-250, S/N 27-2000 through S/N 27-7554172.

2. Also eligible on the above listed Models when equipped with Approved Turbocharged Engines (250 H.P.) and/or Wing Tip Tanks per STC SA1480WE.

This e patiand the superin dad Wheh på the has for a Stroval shall remain in effet until sur vendered, suspended, revoked, on a termination date is stherwise established by the Aldministrator of the Federal Aviation Administration .

Date of Application: 10-17-84 Date Reissued:

Date of Issuance: 11-28-84 Date Amended:

EDERAL AVIATIO By Direction of the Administrator Total 17 telemen (Signature) Harold W. Holdeman OMINISTRATO DAS Staff Coordinator, DAS 5 SW (Title)

47.

**FAA FORM 8110-2 (10... 58)**

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Shcet) Number: SA53535W-D Limitations and Conditions: (con't)

3. FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 89537, dated 11-28-84 is required and/or later FAA Approved revisions of the above supplement.

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

aaron of this certificate is punishable by a fine of not exceeding SLØ00, or imprisonmen! not exceeding 3 years. ur tai

• :.: FiRM B1102-1 (10-69) This certificate may be transferred in decordance with HAR 21 17 PAGE 2 OF. 2 PAGES

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

Date of Transfer: _ Signature of grantor (In ink):.

**US GOYERNMENT PINING OFFICE TOO OPOO SE**

## Every issue (1)

- November 28, 1984: Issued, Current. [certificate](https://openairdocs.org/files/sha256/1f/63/1f636ef17ef049c285b9b91e256d2e3bf572f003343a30f71b004dc06df9ed06)

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