# STC SA543AL

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Ronald E Sullivan, United States
- Description: Installation of Piper PA-18 type landing gear.
- Applied: January 14, 1975
- Status date: May 7, 1979
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A-780](https://openairdocs.org/tcds/A-780)
- Certificate PDF: https://openairdocs.org/files/sha256/1d/99/1d995d4bbe94220107e35d2fa4f3fcf3a74291c02a8126badcec99d0b54fa5b0
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C65FC156258BA13B85256CC200122911.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA543AL

## ADs that name it (0)

None.

## Approved models (1)

- The New Piper Aircraft Inc. PA-12 Series ([TCDS A-780](https://openairdocs.org/tcds/A-780))

## What the certificate says

The certificate is a scan without a text layer; open the PDF to read it.

## Every issue (1)

- May 7, 1979: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/1d/99/1d995d4bbe94220107e35d2fa4f3fcf3a74291c02a8126badcec99d0b54fa5b0)

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