# STC SA3092CH

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Kelly Aerospace Thermal Systems LLC, United States
- Description: Installation of an independent 28 VDC Auxiliary Bus
- Applied: August 8, 2011
- Status date: May 3, 2012
- Product: Aircraft, Small Airplane
- Certification basis: Part 21, Part 23
- Data sheets: [TCDS A19SO](https://openairdocs.org/tcds/A19SO)
- Certificate PDF: https://openairdocs.org/files/sha256/fe/46/fe463dec6d5b46b9d0164b7b52f5de1deb47ae99e549b3ae32379b1b9c9d0900
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/71F34EF58042794886257A1700693284.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA3092CH

## ADs that name it (0)

None.

## Approved models (1)

- Piper Aircraft Inc. PA-44-180 ([TCDS A19SO](https://openairdocs.org/tcds/A19SO))

## 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.

Part 23 of the Federal Aviation Regulations.

Original Product--Type Certificate Number: A19SO Make: Piper Aircraft, Inc Model: PA-44-180

Installation of an independent 28 VDC Auxiliary Bus, Kelly Aerospace kit #KATS-11-001. Installation Instructions as listed on NC-10-078, revision B, dated February 16, 2012, and Drawing List NC-10-077, revision C, dated March 20, 2012, or later FAA approved revision.

1. This STC requires concurrent installation of STC SA03093CH, an electric Air Conditioning system.

2. The installer must determine whether this design change is compatible with previously approved modifications.

3. A copy of this Certificate must be maintained as part of the permanent records for the modified aircraft.

4. If the holder agrees to permit another person to use this certificate to alter the product, the holder must give the other person written evidence of that permission.

Kelly Aerospace Thermal Systems, LLC 1625 Lost Nation Rd Willoughby, OH 44094 Date of application : August 8, 2011

Date of issuance : May 3, 2012

( Signature) Steven L. Lardinois Manager, Systems & Flight Test Branch Chicago Aircraft Certification Office

( Title)

## Every issue (1)

- May 3, 2012: Issued, Current. [certificate](https://openairdocs.org/files/sha256/fe/46/fe463dec6d5b46b9d0164b7b52f5de1deb47ae99e549b3ae32379b1b9c9d0900)

---
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.