# STC SA4-470

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Vanaero Company, United States
- Description: ADF loop.
- Applied: April 23, 1958
- Status date: August 6, 2007
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A-793](https://openairdocs.org/tcds/A-793)
- Certificate PDF: https://openairdocs.org/files/sha256/97/f7/97f71893e47a4d7b4431548383bbce99193c98416a609d8796e9fb79637dec21
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E00FCFFE952D360E86257356005CFBDC.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4-470

## ADs that name it (0)

None.

## Approved models (1)

- Tracor Flight Systems Inc. 240 Series ([TCDS A-793](https://openairdocs.org/tcds/A-793))

## 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 4b of the Civil Air Regulations.

A-793

Convair

240 Description of Type Design Change : Installation of ADF Loop in Convair 240 aircraft per On Mark Engineering Company Drawing Number 294.

Limitations and Conditions: This approval should not be extended to other specific aircraft of this m odel on which other previously approved m odifications ar e incorporated, unless it is determ ined 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 23, 1958

Date of issuance : April 25, 1958

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/sha256/97/f7/97f71893e47a4d7b4431548383bbce99193c98416a609d8796e9fb79637dec21)

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