# STC SA441SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Martin Slone, United States
- Description: Installation of Flexsteel Landing Gear
- Applied: March 26, 1964
- Status date: August 23, 2016
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 2A10](https://openairdocs.org/tcds/2A10), [TCDS 2A8](https://openairdocs.org/tcds/2A8)
- Certificate PDF: https://openairdocs.org/files/sha256/d4/20/d420f3833ed3920bf332ffc9f27f42a3444f824d7beb5a033c421533a112f153
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FB2C8D2ACD22ADAA86258018006CB8E4.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA441SW

## ADs that name it (0)

None.

## Approved models (4)

- Lavia Argentina S.A. (Laviasa) PA-25 ([TCDS 2A10](https://openairdocs.org/tcds/2A10))
- Lavia Argentina S.A. (Laviasa) PA-25 ([TCDS 2A8](https://openairdocs.org/tcds/2A8))
- Lavia Argentina S.A. (Laviasa) PA-25-235 ([TCDS 2A10](https://openairdocs.org/tcds/2A10))
- Lavia Argentina S.A. (Laviasa) PA-25-235 ([TCDS 2A8](https://openairdocs.org/tcds/2A8))

## What the certificate says

Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record.

FAA Form 8110-2 (5/14) Page 1 of 2

Number: SA441SW Reissued on August 23, 2016 to supersede the original STC, which has been lost or misplaced

This certificate issued to: Martin Slone 401 Lakeview Dr.

Oldsmar, FL 34677

Part 8 of the Civil Aviation Regulations.

Original Product – Type Certificate Number: 2A8, 2A10 Make: Piper Model: PA-25-150; PA-25-235 Description of Type Design Change:

Installation of Flexsteel Landing Gear according to Installation Instructions dated 10/22/64 and Drawings G-2 through G-7 Revised February 25, 1966, and Drawing 426 dated 6/1/79, or later FAA approved revision.

Modification is limited to aircraft certificated in restricted category.

Compatibility of this design change with previously approved modifications must be determined by the installer. If the holder agrees to permit another person to use this certificate ot alter the product, the holder shall give the other person written evidence of that permission.

Date of Application: March 26, 1964 Date Reissued: June 25, 2003; August 23, 2016 Date of Issuance: December 01, 1964 Date Amended: 3/25/65; 3/13/67; 3/12/79; 6/19/79 Rev. 4

Signature

Title Christina Underwood, Manager Atlanta Aircraft Certification Office

FAA Form 8110-2 (5/14) Page 2 of 2

Transfer the ownership of Supplemental Type Certificate Number: SA441SW

To (Name and address of transferee)

From (Name and address of grantor)

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA441SW

FAA Form 8110-2 (5/14) Page 3 of 2

## Every issue (2)

- August 23, 2016: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/d4/20/d420f3833ed3920bf332ffc9f27f42a3444f824d7beb5a033c421533a112f153)
- June 25, 2003: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/13/a6/13a627d7485125a008580c26aad80bbd4596530aac26eb37124008ec004be44d)

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