# STC SA721GL

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Kaman Corporation Aircraft Wheel and Brake LLC
- Description: Install Parker Hannifin Wheels & Brakes Conversion Kit 199-119. (PA-31-350 modified by STC SA4678SW)
- Status date: September 19, 2022
- Data sheets: A20SO
- Certificate PDF: https://openairdocs.org/files/sha256/8f/f4/8ff441181f33c84c90ec6a74c98cf7cbc861bdc712fe82eb7b3f1f6d30d2c380
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID120996962420250613150310.0001
- Page: https://openairdocs.org/stc/SA721GL

## ADs that name it

None.

## Approved models (1)

- Piper Aircraft Inc. PA-31-350 (TCDS A20SO)

## 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.

for SA721GL Kaman Corporation Aircraft Wheel and Brake, LLC 1160 Center Road Avon, OH 44011 Part 3 Civil Air Regulations A20SO Piper Aircraft Inc.

PA-31-350 modified by STC SA4678SW Install Parker Hannifin Wheels & Brakes Conversion Kit 199-119 in accordance with Installation Instructions, Revision A, dated January 10, 1984, and Installation Drawing 50-89, Revision A, dated January 10, 1984, or later FAA approved revisions.

The installer must determine the compatability of this modification with other previously approved modifications.

November 17, 1983 September 19, 2022 January 10, 1984 Paul (Vu) Nguyen Manager, Central Certification Branch Compliance & Airworthiness Division Aircraft Certification Service 2

SA721GL 2

## Every issue (1)

- September 19, 2022: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/8f/f4/8ff441181f33c84c90ec6a74c98cf7cbc861bdc712fe82eb7b3f1f6d30d2c380)

---
From OpenAirDocs.org, an independent open copy of FAA data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.