# STC SA575SW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Farm Air Service, United States
- Description: Modification of horizontal stabilizer, elevators, vertical fin and rudder to be used with Ruleto Loadlifter Wings
- Applied: March 22, 1965
- Status date: December 8, 1965
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A-743](https://openairdocs.org/tcds/A-743)
- Certificate PDF: https://openairdocs.org/files/sha256/00/bc/00bc66fcbe825da632d3e8fbdeba4afabc265ac8caee0b088d942d0b84187596
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/37AA67967693AEFD86257EEA00601245.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA575SW

## ADs that name it (0)

None.

## Approved models (1)

- Boeing Airplane Company Wichita Division 75 (Army PT-13) ([TCDS A-743](https://openairdocs.org/tcds/A-743))

## What the certificate says

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

FEDERAL AVIATION AGENCY Supplemental Type Certificate

**1. NAME AND ADDRESS OF APPLICANT FORM APPROVED, BUDGET BUREAU NO. 04-R015**

**INSTRUCTIONS - SUBMIT IN TRI PLICATE TO LOCAL FAA FLIGHT STANDARDS INSPECTOR.**

**COPY WILL BE RETURNED TO APPLICANT UPON**

ISSUANCE Supplemental Type Certificate APPLIED FOR:

Billy Richardson AIRCRAFT ENGINE PROPELLER Farm Air service, Inc. ORIGINAL MODEL DESIGNATION р. О. Вож 68 Boeing 75 Nome, Texas NEW MODEL DESIGNATION (IF desired) Same

3. DESCRIPTION OF CHANGE Modification of horizontal stabilizer, elevators, vertical fin and rudder to be used with Ruleto Loadlifter Wings, according to Drawing 1 "Horizontal Stabilizer", Drawing 2 "Splice detail & rib detaila", Draving 3, "Rudder & vertical fin" all dated Pebruary 25, 1965.

JILL DATA BE AVAILABLE FOR SALE OR RELEASE TO OTHER PERSONS? YES NO

b. WILL PARTS BE MANUFACTURED FOR SALE (Ref. CAR 1.55)? YES NO

**5. SIGNATURE AND TITLE OF APPLICANT**

SIGNATURE Match 2i, - 1965 Coi P1lot & A&P Mechanic.

Date of Application: TITLE

6. To be Completed by FAA

NATURE AND LOCATION OF DATA Data 11sted in Item 3 above, FAA Form 1257 dated 12/8/65; Flight Test Report dated 1/25/66 on file in SW-210.

Reference Project: A696SWS Applicable regulations: same as orighal ccettification.

ORIGINAL TYPE CERTIFICATE NO. FAA APPROVAL 743 Supplemental Type Certificate NO.

SIGNATURE DA TE A3758W APPROVAL faH. H. Slaughter December 8, 1965 Calet, Engineering 6, Manufacturiog Branch * U.S. GOVERNMENT PRINTING OFFICE: 1959 0-509657 FORM FAA -2417 (5-59)

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) _ (Address of transferee) (Number and steel) (City, Stake, and 21P code ) from (Name of grantor) (Print or sype) - (Address of grantor) ( Number and sireel;

(City, Stake, and ZIP code, Extent of Authority (if licensing agreement):

Signature of grantor (In ink):.

## Every issue (1)

- December 8, 1965: Issued, Current. [certificate](https://openairdocs.org/files/sha256/00/bc/00bc66fcbe825da632d3e8fbdeba4afabc265ac8caee0b088d942d0b84187596)

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