# STC SA528SW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: H & H Enterprises, United States
- Description: Modify Lear 164 electro-mechanical rotary actuator.
- Applied: May 27, 1965
- Status date: June 17, 1965
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 3A20](https://openairdocs.org/tcds/3A20)
- Certificate PDF: https://openairdocs.org/files/sha256/75/b7/75b7fcfa4d72b3340e74bb2f092f1da7d40c3fdca7634b871c0c77e0ac5701d0
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/23D88019102A257A86257ED8006D6BA0.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA528SW

## ADs that name it (0)

None.

## Approved models (3)

- Beechcraft Corporation 65 ([TCDS 3A20](https://openairdocs.org/tcds/3A20))
- Beechcraft Corporation 65-80 ([TCDS 3A20](https://openairdocs.org/tcds/3A20))
- Beechcraft Corporation 65-A80 ([TCDS 3A20](https://openairdocs.org/tcds/3A20))

## 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.

**FEDERAL AVIATION AGENCY**

**SUPPLEMENTAL TYPE CERTIFICATE FORM APPROVED, BUDGET BUREAU NO. 04-RO15**

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

**COPY WILL BE RETURNED TO APPLICANT UPON**

**ISSUANCE**

1. NAME AND ADDRESS OF APPLICANT H & H Enterprises 4620 N. W. 10th Street Oklahoma City, Oklahoma73107 Mailing Address: P. 0. Box 75135

2. SUPPLEMENTAL TYPE CERTIFICATE APPLIED FOR:

fc 1 AIRCRAFT I I ENGINE II PROPELLER

ORIGINAL MODEL DESIGNATION Beech Models 65, 65-80 & 65-A80 MODEL DESIGNATION (If d**lred)

DESCRIPTION OF CHANGE Modify Lear Model 164 Electro-Mechanical Rotary Actuator for installation on Beech Models 65, 65-80 & 65-A80 to actuate Filter Door.

Data Required: H & H Drawing List (Figures 1 through 8) for parts manufacture.

Dated May 15, 1965.

H & H Installation Instructions (Illustrated) dated May 15, 1965, For Installation.

. WILL DATA BE AVAILABLE FOR SALE OR RELEASE TO OTHER PERSONS? YES

b. WILL PARTS BE MANUFACTURED FOR SALE («•/. CAt 1.55)1 __ SD YES NO NO

5. SIGNATURE AND TITLE OF APPLICANT May 27, 1965 f/ SIGNATURE James L. Snell OwnerDATE OF APPLICATION TITLE

6. To be Completed by FAA

NATURE AND LOCATION OF DATA Data Hated In lte» 3 above, H & H .Enterprises' Synopsis, Westinghouse Catalog **« FAA-1257 dated 6/17/63 on file at 8W-210.

Bafereace ProjectJ A721SHS.

regulation: Save «• orlgiaal eertifleatioa.

**ORIGINAL TYPE CERTIFICATE NO.**

**3420 SUPPLEMENTAL TYPE CERTIFICATE NO.**

rWW/»SROVAL

FAA APPROVAL Chlaf,inglneertag aad Manufaeturlag Branch TITLE * «.«. «OYt««MtNT MUMTIMS OfFICt : l»» O—(OMS7 FORM FAA-2417 (5-59)

## Every issue (1)

- June 17, 1965: Issued, Current. [certificate](https://openairdocs.org/files/sha256/75/b7/75b7fcfa4d72b3340e74bb2f092f1da7d40c3fdca7634b871c0c77e0ac5701d0)

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From OpenAirDocs.org, an independent open copy of FAA and NTSB data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.