# STC SA1218NW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Dalton, John B., United States
- Description: Installation of a Cessna model 180K landing gear assembly, cowl deck brace, a Cessna model 185 tail wheel assembly, 8.50 X 6 (and smaller diameter) tires, and a modified Cessna model 172 rear seat and seat belt attach points
- Applied: November 18, 1980
- Status date: April 17, 1981
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 5A6](https://openairdocs.org/tcds/5A6)
- Certificate PDF: https://openairdocs.org/files/sha256/0d/35/0d35300d9dddadd0b31d0d671c912bd4693919aadcd86088b7aaaebbc8e1ff6a
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/13C4A06C9ADE657D86257A3A0069146A.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA1218NW

## ADs that name it (0)

None.

## Approved models (1)

- Cessna Aircraft Company 180 ([TCDS 5A6](https://openairdocs.org/tcds/5A6))

## What the certificate says

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA1218NW This certificate issued to: John B. Dalton and Gary L. Olson Purt 3 of the Civil Air Regulations, November 1, 1949, as amended by 3-1 through 3-8.

Original Product - Type bentificate Number: 5A6 Make: Cessna Model: 180 semite da kim hange sna hotel 155 tali wheel dese 18y, 8.50 gear (and smaller diameter) tires, and a modified Cessna model 172 rear seat and seat belt attach points in accordance with John B. Dalton and Gary L. Olson photographs 1 through 10 and Sketches 1 and 2.

Limitations and Conditions: Data pertaining to this modification are considered inadequate for duplication in other aircraft. This approval is limited to the installation in Cessna 180, Serial Number 30034 only. A copy of this Certificate shall be maintained as part of the permanent records for the modified aircraft.

Date of Application: November 18, 1980 Date Reissued:

Date of Issuance: April 17, 1981 Date Amended:

FEDERAL AVIATION Chardo CLinvoela (Signature ) TO KINISTRATOE Acting Chief, Seattle Area Aircraft Certification Office (Title)

47.

## Every issue (1)

- April 17, 1981: Issued, Current. [certificate](https://openairdocs.org/files/sha256/0d/35/0d35300d9dddadd0b31d0d671c912bd4693919aadcd86088b7aaaebbc8e1ff6a)

---
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.