# STC SA5354SW-D

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC System 60 pitch stabilization system, Model ST-250, with optional automatic electric trim system.
- Applied: October 18, 1984
- Status date: November 29, 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/sha256/42/49/4249343250e56e58feb1316f5020f4e825d020c65be78bfe2491cb0f1600ecda
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0B83BCCBE2235E4B85256CC200122895.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA5354SW-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: SA5354SW-D This certificate issued to: 1e. S-TEC Corporation Rt. 4, Bldg. 946 Wolters Industrial Complex Mineral Wells, TX 76067 Part 3 of the CiVil Air Hegulations.

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

installation of S-TEC System 60 Pitch Stabilization System, Model ST-250, with Optional Automatic Electric Trim System, according to Bulletin No. 350, dated 10-05-84 and Master Drawing List No. 92291, dated 10-05-84 and/or later FAA Approved revisions of the above data (14 Volt System).

1. Eligible only 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 Turbo- . charged Engines (250 H.P.) and/or Wing Tip Tanks per STC SA1480WE, This creati and the supering Pade which paht basis orS STeal shal remain in effect until sun vendered, suspended, versked, on a termination date is sherise estallished by the Administrator of the Federal Aviation Administration .

Date of Application: 10-18-84 Date Reissued:

Date of Issuance: 11-29-84 Date Amended:

FEDERAL AVIATION By Direction of the Administrator (Signature ) TOMINISTA ATIO DAS Staff Coordinator, DAS 5 Sw Harold W. Holdeman (Title) 47 FAr FoRM 8110-2 (10-68)

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Shcet) Number: SA53545W-D Limitations and Conditions: (con't)

3. FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 89538, dated 11-29-84 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.

t abestan of thus ertıficate is punshable by a fıne of not exteeding SLO00, or imprisonment not excedrs 3 vears, a har 1 2^ [i211 81102-1 (10-60) This certificate may be transferred in accrdance with fAk 1 I PAGE 20F 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 ) trom (Name of grantor) (Print or type) - (Address of grantor) (Number and street) (City, State, and ZIP code ) Extent of Authority (if licensing agreement):

Signature of grantor (In ink):.

U.S. GOVERNMENT PRINTING OFFICE : 1966 OF-205-579

## Every issue (1)

- November 29, 1984: Issued, Current. [certificate](https://openairdocs.org/files/sha256/42/49/4249343250e56e58feb1316f5020f4e825d020c65be78bfe2491cb0f1600ecda)

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