# STC SA1806SO

- Type: Supplemental type certificate
- Status: Historical, Abandoned
- Holder: Harlan Associates of Spruce Creek, Inc., United States
- Description: Installation of nose landing gear tire.
- Applied: May 28, 1985
- Status date: January 27, 2026
- Product: Aircraft, Single-Engine
- Data sheets: [TCDS 1A15](https://openairdocs.org/tcds/1A15), [TCDS A1EA](https://openairdocs.org/tcds/A1EA)
- Certificate PDF: https://openairdocs.org/files/sha256/9e/b7/9eb7d7d34d436123f1eae9c04dcdfc6a30e1592e1f7d483219b65c966a2c08a6
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID198029939020260701150344.0001
- DRS record last changed: July 1, 2026
- Page: https://openairdocs.org/stc/SA1806SO

## 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-30 ([TCDS A1EA](https://openairdocs.org/tcds/A1EA))
- The New Piper Aircraft Inc. PA-39 ([TCDS A1EA](https://openairdocs.org/tcds/A1EA))

## What the certificate says

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

ABANDONED - Zinited States of 2lmerico 4938 Supplemental Type Certificate Department of Transportation Federal Aviation Administration Number SA1806SO This certificate issued to: Harlan Associates of Spruce Creek, Inc.

1813 Wiley Post Trail Daytona Beach, Florida 32014 Certifies that the change in the type design for thefitteeing product with the limitutivus and conditions therefor as specified heren mats the airothiness aquirements of Part 3 of the CIVIL NiT Plagulations.

Original Product -Type Bertificate Number: 1A15 AIEA Aluke: Piper Piper Model: PA-24 PA-30, PA-39 Description of Type Design Change:

Installation of nose landing gear tire, size 15 x 6.0-6 6 PR., replacing size

6.00-6 6 PR.

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 of those other previously approved modifications will introduce no adverse effect upon the airworthiness of that airplane.

Date of Application: May 28, 1985 Date Reissued:

July 10, 1985 Date Amended:

DERAL AVIATIO By Direction of the Administrator Gerald R. Mack (Stature) *MINISTRATIO Acting Manager, Atlanta Aircraft Certification Office (Title) 47 FAA FoR 8110-2 (10-68) ABANDONED - 1/27/2026

## Every issue (1)

- January 27, 2026: Abandoned, Historical. [certificate](https://openairdocs.org/files/sha256/9e/b7/9eb7d7d34d436123f1eae9c04dcdfc6a30e1592e1f7d483219b65c966a2c08a6)

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