# STC SA4-1470

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Vanaero Company, United States
- Description: Alclad sheet .020 2024-T3.
- Applied: April 20, 1961
- Status date: August 6, 2007
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: TCDS 2-548, TCDS 785
- Certificate PDF: https://openairdocs.org/files/sha256/d6/ef/d6ef12f68e9457d49c84bf85569d30ad346e0d11e6d759a25f56ee7ac0c04aa4
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/865F1C9B977B186886257356005CFD69.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4-1470

## ADs that name it (0)

None.

## Approved models (2)

- General Dynamics Corporation 28-5ACF (TCDS 785)
- General Dynamics Corporation PBY-5A (Army OA-10A) (TCDS 2-548)

## 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.

This certificate reissued to replace certificate reported lost.

This Certificate issued to MIKE KEITHLEY MAILING ADDRESS c/o MGK AERO INC. P. O. BOX 221957 d/b/a VANAERO COMPANY NEWHALL, CA 91322-1957 25620 RYE CANYON ROAD BLDG. A VALENCIA, CALIFORNIA 91355 Part CAR 3 and 4a for 28-5ACF;

Airworthiness Certificate Only (CAR 04a) for PBY-5A of the Civil Air Regulations.

785, 2-548

Convair

28-5ACF, PBY-5A Description of Type Design Change : Modification of PBY-5A Trailing Edge Sect. per OMEC Drawing No. 635 by substituting .020 2024-T3 Alclad sheet in place of original fabric.

Limitations and Conditions : This approval should not be extended to other specific aircraft of these models on which other previously approved modifications are incorporated, unless it is determined that the interrelationship between this cha nge and any of those other previ ously approved m odifications will introduce no adverse effect upon the airworthiness of that aircraft. If the holder agrees to perm it another person to use this certificate to alter the product, th e holder shall give the other person written evidence of that permission.

Date of application : April 20, 1961

Date of issuance : April 21, 1961

Date reissued : August 6, 2007

( Signature) Manager, Technical & Administrative Support Staff Los Angeles Aircraft Certification Office ( Title)

## Every issue (1)

- August 6, 2007: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/d6/ef/d6ef12f68e9457d49c84bf85569d30ad346e0d11e6d759a25f56ee7ac0c04aa4)

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