# STC SA222AL

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Airglas Inc., United States
- Description: Installation of Airglas Engineering Model L2500A wheel replacement skis
- Applied: April 30, 1966
- Status date: August 18, 2012
- Product: Aircraft, Small Airplane
- Certification basis: Part 3, Part 21
- Data sheets: [TCDS 3A23](https://openairdocs.org/tcds/3A23)
- Certificate PDF: https://openairdocs.org/files/sha256/b9/92/b992a664abcbfed5120a0cef3591433d35c226d356569116d580fb3bb6da3c30
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A229DC383A78F44586257EAD0054B6FF.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA222AL

## ADs that name it (0)

None.

## Approved models (8)

- Maule Aerospace Technology Inc. Bee Dee M-4 ([TCDS 3A23](https://openairdocs.org/tcds/3A23))
- Maule Aerospace Technology Inc. M-4-210 ([TCDS 3A23](https://openairdocs.org/tcds/3A23))
- Maule Aerospace Technology Inc. M-4-210C ([TCDS 3A23](https://openairdocs.org/tcds/3A23))
- Maule Aerospace Technology Inc. M-4-210S ([TCDS 3A23](https://openairdocs.org/tcds/3A23))
- Maule Aerospace Technology Inc. M-4-210T ([TCDS 3A23](https://openairdocs.org/tcds/3A23))
- Maule Aerospace Technology Inc. M-4C ([TCDS 3A23](https://openairdocs.org/tcds/3A23))
- Maule Aerospace Technology Inc. M-4S ([TCDS 3A23](https://openairdocs.org/tcds/3A23))
- Maule Aerospace Technology Inc. M-4T ([TCDS 3A23](https://openairdocs.org/tcds/3A23))

## 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.

United States Of America Department of Transportation - Federal Aviation Agency Supplemental Type Certificate

This Certificate issued to

Part 3 of the Civil Air Regulations.

Installation of Airglas Engineering Model L2500A wheel replacement skis in accordance with Airglas Engineering Drawing L2500-M-4, dated April 29, 1966.

This approval should not be extended to other specific aircraft of this model on which other previously approved modifications are incorporated unless it is determined that the interrelationship between this change and any of those other previously approved modifications will introduce no adverse effect upon the airworthiness of the aircraft.

Airglas, Inc.

3500 O’Malley Rd Anchorage, AK 99507

3A23 Make: Maule Model: M-4, 4C, 4S, 4T, M-4-210, 210C, 210S, and 210T

Date of application : April 30, 1966

Date of issuance : December 5, 1966

Date reissued : August 18, 2012

(Signature) August A. Asay Manager,Anchorage Aircraft Certification Office

(Title)

## Every issue (1)

- August 18, 2012: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/b9/92/b992a664abcbfed5120a0cef3591433d35c226d356569116d580fb3bb6da3c30)

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