# STC SA01421AT

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Chelton Aviation Corporation, United States
- Description: Installation of an OCEM AP-3C autopilot. (PA-24-180)
- Applied: August 31, 1995
- Status date: April 6, 2004
- Product: Aircraft, Single-Engine
- Certification basis: Part 3, Part 21
- Data sheets: [TCDS 1A15](https://openairdocs.org/tcds/1A15)
- Certificate PDF: https://openairdocs.org/files/sha256/62/3b/623b185944a0716b971a197d3094554d2409d656f04561b05420c44dcf66e801
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/409D5C90C4F285F586256E830065BD8F.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA01421AT

## ADs that name it (0)

None.

## Approved models (3)

- The New Piper Aircraft Inc. PA-24 ([TCDS 1A15](https://openairdocs.org/tcds/1A15))
- The New Piper Aircraft Inc. PA-24-250 ([TCDS 1A15](https://openairdocs.org/tcds/1A15))
- The New Piper Aircraft Inc. PA-24-260 ([TCDS 1A15](https://openairdocs.org/tcds/1A15))

## 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.

Number SA01421AT This certificate issued to Chelton Aviation Corporation 5011 Sabre Drive Denton, Texas 76207

Part 3 of the Civil Air Regulations.

Original Product--Type Certificate Number : 1A15 Make :

Piper PA-24-180, -250, -260 Description of Type Design Change: Installation of an OCEM AP-3C autopilot in accordance with OCEM Avionics Company Automatic Flight Systems OCEM AP-2C, AP-3C Installation Manual dated 2/26/96, or later FAA Approved Revisions.

Limitations and Conditions: This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporated, unless it is determined by the installer that the interrelationship between this change and any other previously approved modifications will produce no adverse effect upon the airworthiness of that airplane. FAA approved Airplane Flight Manual Supplement, dated July 18, 1997, or later approved revision, is a required part of this STC. If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

Date of application : August 31, 1995

Date of issuance : July 18, 1997 Date reissued : April 6, 2004

(Signature) Melvin D. Taylor Manager Atlanta Aircraft Certification Office

(Title)

## Every issue (1)

- April 6, 2004: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/62/3b/623b185944a0716b971a197d3094554d2409d656f04561b05420c44dcf66e801)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.