# STC SA2822SO

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Sky Sign Inc, United States
- Description: Intallation of a Sky-Sign aerial advertising system
- Applied: March 7, 1990
- Status date: April 26, 2021
- Product: Aircraft, Small Airplane
- Certification basis: Part 3, Part 21
- Data sheets: [TCDS 3A12](https://openairdocs.org/tcds/3A12)
- Certificate PDF: https://openairdocs.org/files/sha256/78/d3/78d3f86d8f4e9c9f3af84147f10115b2e3c6dbfd19971b54a902943296aef842
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FF9BC6183E5CA681862586C700557F15.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2822SO

## ADs that name it (0)

None.

## Approved models (10)

- Textron Aviation Inc. 172F (USAF T-41A) ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Textron Aviation Inc. 172I ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Textron Aviation Inc. 172K ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Textron Aviation Inc. 172L ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Textron Aviation Inc. 172M ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Textron Aviation Inc. 172N ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Textron Aviation Inc. 172P ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Textron Aviation Inc. 172Q ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Textron Aviation Inc. 172R ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Textron Aviation Inc. 172S ([TCDS 3A12](https://openairdocs.org/tcds/3A12))

## 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.

FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION Page 1 of ___ United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number:

SA2822SO Sky Sign, LLC 4101 SW Leighton Farm Ave.

Palm City, FL 34990 Part 3 the Civil Air Regulations 3A12 Cessna 172F, 172I, 172K, 172L, 172M, 172N, 172P, 172Q, 172R and 172S with 150 HP engines or greater.

Installation of a Sky-Sign Aerial Advertising System in accordance with R. T. Aerospace Corporation Drawing No. RT-C725320.2200, Revision B or later FAA approved revision.

FAA Approved Airplane Flight Manual Supplement, dated August 29, 1990, or later FAA approved revision, is a required part of this STC.

(Limitations and Conditions continued on page 3 of 3) March 7, 1990 November 13, 1990; April 26, 2021 August 29, 1990 August 29, 2002; July 7, 2006 (for) Christina M. Underwood, Manager, Atlanta ACO Branch 3

FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION Page 2 of ___ United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number:

SA2822SO 3

FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION Page ___ of ___ United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number:

SA2822SO Limitations and Conditions (Continued):

This STC is applicable only to Cessna 172 models with 150 HP engines, or greater, and STOL wingtips. The compatibility of this design change with other previously approved modifications must be determined by the installer. If the holder of this STC 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.

----------------------------------------END----------------------------------------

## Every issue (2)

- April 26, 2021: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/78/d3/78d3f86d8f4e9c9f3af84147f10115b2e3c6dbfd19971b54a902943296aef842)
- July 7, 2006: Amended, Historical. [certificate](https://openairdocs.org/files/sha256/ae/77/ae77f1e5a2feacd0f52fd508076f33d32643a3ec056d5239c2ab8e6a3457dfe3)

---
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.