# STC SA7136SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: S-TEC Corporation, United States
- Description: Installation of S-TEC system 65 two axis automatic flight guidance system Model ST-403.
- Applied: January 14, 1987
- Status date: September 9, 1991
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A20](https://openairdocs.org/tcds/3A20)
- Certificate PDF: https://openairdocs.org/files/sha256/c7/73/c7736fdad43c0c0b49521cdea901667dc5dd590cee94b29dbc47cf0698ce62dd
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/959AA805E2C05C5C85256CC20056A19C.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA7136SW-D

## ADs that name it (0)

None.

## Approved models (5)

- Raytheon Aircraft Company 65-90 ([TCDS 3A20](https://openairdocs.org/tcds/3A20))
- Raytheon Aircraft Company 65-A90 ([TCDS 3A20](https://openairdocs.org/tcds/3A20))
- Raytheon Aircraft Company B90 ([TCDS 3A20](https://openairdocs.org/tcds/3A20))
- Raytheon Aircraft Company C90 ([TCDS 3A20](https://openairdocs.org/tcds/3A20))
- Raytheon Aircraft Company E90 ([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.

fyfot Btpartramt of Transportation—jfntaal Sltriarion administration Supplemental 'Cgpe Certificate SA7136SW-D S-TEC Corporation Rt. 4, Bldg. 946 Wolters Industrial Complex Mineral Wells, Texas 76067 rnr/mfrrK >nf/rmn</rr nil ClVl'l Air 3A20 Beech 65-90, 65-A90, B90, C90, and E90 Installation of S-TEC System 65 Two Axis Automatic Flight Guidance System, Model ST-403, according to Bulletin No. 503, Revision 3, dated 8-09-91 and Master Drawing List No. 92416, Revision C, dated 8-09-91 and/or later FAA Approved revisions of the above data (28 Volt System).

1. FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 89728, dated 2-04-87 is required for Beech Models B90 and C90 and/or later FAA Approved revisions of the above supplement. .

(See Continuation Sheet, Page 2, a part of this STC.)

^^ &~: 1-14-87 2-04-87 . 6-09-87, 8-10-87, 9-09-91 Revision 3 (SignMreJ Wi11iam y. Thomas Staff (Title)

TU$ tertiftmle mmy tt trivuftmJ in <Kc*rAm» witk FAX 21.17.

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ttratni Stain of 3now Bqjartmcnt of Transportation— .federal atrtation administration Supplemental l^pe Certificate(Continuation $hett) SA7136SW-D, Revision 3 Limitations and Conditions (con't.)

2. FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 89743, dated 6-09-87 is required for Beech Models 65-90 and 65-A90 and/or later FAA Approved revisions of the above supplement.

3. FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 89728-1, dated 8-10-87 is required for Beech Models B90 and C90 and/or later FAA Approved revisions of the above supplement.

4. FAA Approved Supplment to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 89743-1, dated 8-10-87 is required for Beech Models 65-90 and 65-A90 and/or later FAA Approved revisions of the above supplement.

5. FAA Approved Supplement to Pilot's Operating Handbook and/or FAA Approved Airplane Flight Manual, P/N 89945, dated 9-09-91 is required for Beech Model E90 and/or later FAA Approved revisions of the above supplement.

6. Compatibility of this modification with other previously approved modifications must be determined by the installer.

,!M alteration of this certifecatt is puntthablt by afint of not exceeding 11,000, or imprisonment not exceeding 3 years, or hnih.

PAA FORM •iio.fet (tfr4«) TAu cirttficait may bt transfirnd in accordant! unlH FAR .'/.•/'.

**PAGE 2 OP 2 PAGES**

## Every issue (1)

- September 9, 1991: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/c7/73/c7736fdad43c0c0b49521cdea901667dc5dd590cee94b29dbc47cf0698ce62dd)

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