# STC SA2776SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Aerosonic Corporation, United States
- Description: Installation of Teledyne Avionics normalized angle of attack indicating system, P/N SL112B2700.
- Applied: July 13, 1977
- Status date: August 14, 2007
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21, Part 25
- Data sheets: [TCDS A3EU](https://openairdocs.org/tcds/A3EU)
- Certificate PDF: https://openairdocs.org/files/sha256/10/95/10958deeaf1f50ec2f629e716bc1b1f4672e732ad5d5154b69edc61e5cb80c5a
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FEFBAC363581B075862573D30083596D.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2776SW

## ADs that name it (0)

None.

## Approved models (1)

- Raytheon Aircraft Company HS.125 Series 700A ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))

## 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 SA2776SW This certificate issued to Aerosonic Corporation 1212 North Hercules Avenue Clearwater, FL 33765

Part 25 of the Federal Aviation Regulations.

Original Product -- Type Certificate Number: A3EU Make: British Aerospace

Model: HS.125-700A Description of Type Design Change:

Installation of Teledyne Avionics Normalized Angle of Attack Indicating System, P/N SL112B2700, in accordance with:

Configuration A: P/N SL112B2700-1 or -2; Teledyne Avionics Drawing List No. D7803, Revision C, dated May 15, 1978, or Revision F, dated July 1, 1981.

OR Configuration B: P/N SL112B2700-3 or -4, Teledyne Avionics Drawing List No. D9141, Revision D, dated July 1, 1981.

1. Arkansas Modification Center FAA approved Airplane Flight Manual Supplement dated May 16, 1978, is required; or Teledyne Avionics FAA Approved Airplane Flight Manual Supplement dated June 12, 1978, is required.

(See STC Continuation Sheet, Page 2)

Date of application: July 13, 1977

Date of issuance: June 12, 1978 Date reissued: March 8, 1993, August 14, 2007

Date amended: July 8, 1981

( Signature) Anthony Socias Manager New York Aircraft Certification Office

( Title)

FAA Form 8110-2-1(10-69) Page 2 of 2

Number SA2776SW Date of Reissue: March 8, 1993, August 14, 2007

2. The Installer must determine whether this design change is compatible with previously approved modifications.

3. If the holder agrees to permit another person to use this certificate to alter a product, the holder must give the other person written evidence of that permission

---END---

## Every issue (1)

- August 14, 2007: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/10/95/10958deeaf1f50ec2f629e716bc1b1f4672e732ad5d5154b69edc61e5cb80c5a)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.