# STC SA08997AC-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-581.
- Applied: April 3, 1995
- Status date: April 10, 1995
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 1A13](https://openairdocs.org/tcds/1A13)
- Certificate PDF: https://openairdocs.org/files/sha256/ea/19/ea19d7908f7c749c91f65f9908bdf5d3db7ad5a2b5c54fe20f7bd7cb5f048b3c
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/379160E679B5DCAF85256CC1007F398B.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA08997AC-D

## ADs that name it (0)

None.

## Approved models (2)

- REVO Incorporated Lake LA-4 ([TCDS 1A13](https://openairdocs.org/tcds/1A13))
- REVO Incorporated Lake LA-4-200 ([TCDS 1A13](https://openairdocs.org/tcds/1A13))

## What the certificate says

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

Erited States al Sacrica Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA0B97AC-D This certificate issued to: S-TEC Corporation 946 Pegram Mineral Wells, Texas 76067 Certifies that the change in the type design for the following product with the limitations and conditions shamefor as specified horon mels the sinvonhiness requisments of Port 3 of the CiVIl Air Regulations Original Product -Type Contificato Numbor: 1A13 Make: LAKE Model: LA-4 AND LA-4-200 Description of Type Design Change:

Installation of S-TEC System 60 Pitch Stabilization System, Model ST-581, according to Bulletin No. 681, dated 3-31-95 and Master Drawing List No. 92760, dated 3-31-95 (14 Volt System).

1. Also eligible on Model LA-4-200 When Modified Per STC SA114NE.

2. FAA/DAS Approved Pilot's Operating Handbook and/or Airplane Flight Manual Supplement, P/N 891155, dated 4-10-95 is required or later FAA Approved revisions of the above supplement.

3. Compatibility of this modification with other previously approved modifications must be determined by the installer.

4-10-95 Date Amended:

FEDERAL AVIATION By dinetion of the Edminisloafor William J. Thomas DAS Staff Coordinator, DAS 5 SW (Title)

47.

FAA FoR 8110-2 (10-68)

INSTRUCTIONS: The transfer endorsement below may be used to notify the appropriate FAA Regional Office of the transfer of the Supplemental Type Certificate, The EAR will reissue the certificate in the name of the transferee and forward it to hum:

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 & street) (City, State, and ZIP code) Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

## Every issue (1)

- April 10, 1995: Issued, Current. [certificate](https://openairdocs.org/files/sha256/ea/19/ea19d7908f7c749c91f65f9908bdf5d3db7ad5a2b5c54fe20f7bd7cb5f048b3c)

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