# STC SA447AL

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Cub Crafters Inc, United States
- Description: Fabrication and installation of Stoddard Aero Service Model 15 auxiliary fuel tank in the right wing per Stoddard Aero Service Drawing List No. 447, dated February 7, 1975, or later Federal Aviation Administration approved revision.  Stoddard Aero Service Airplane Flight Manual Supplement dated August 6, 1971, is required with this installation.
- Applied: August 5, 1971
- Status date: January 26, 2012
- Product: Aircraft, Single-Engine
- Certification basis: Part 3, Part 21
- Data sheets: [TCDS 1A1](https://openairdocs.org/tcds/1A1)
- Certificate PDF: https://openairdocs.org/files/sha256/97/81/978153dcdef4abdab8c5524e1828a60ee5c2427467776beb768eef1462d4aaf0
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C533418019C1A34B862579A5006890E3.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA447AL

## ADs that name it (0)

None.

## Approved models (2)

- Piper Aircraft Inc. PA-16 ([TCDS 1A1](https://openairdocs.org/tcds/1A1))
- Piper Aircraft Inc. PA-16S ([TCDS 1A1](https://openairdocs.org/tcds/1A1))

## 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 SA447AL

This certificate, issued to Cub Crafters, Inc.

1918 South 16th Avenue Yakima, WA 98903-1212

Part 3 of the Civil Air Regulations.

Original ProductType Certificate Number: 1A1 Make: Piper Model: PA-16, PA-16S

Description of the Type Design Change: Fabrication and installation of Stoddard Aero Service Model 15 auxiliary fuel tank in the right wing per Stoddard Aero Service Drawing List No. 447, dated February 7, 1975, or later Federal Aviation Administration approved revision. Stoddard Aero Service Airplane Flight Manual Supplement dated August 6, 1971, is required with this installation.

Limitations and Conditions: The approval of this change in type design applies basically to Piper models PA-16 and PA-16S only. 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 previously approved modifications will introduce no adverse effect on the airworthiness of that aircraft. This determination should include consideration of significant changes in weight distribution such as an increase in the fixed disposable weight in the fuselage.

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 5, 1971 Date reissued: May 14, 1998; January 26, 2012 Date of issuance: August 6, 1971 Date amended: February 7, 1975

(Signature) Acting Manager, Seattle Aircraft Certification Office (Title)

## Every issue (1)

- January 26, 2012: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/97/81/978153dcdef4abdab8c5524e1828a60ee5c2427467776beb768eef1462d4aaf0)

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