# STC SA1021NW

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: American Avionics Inc, United States
- Description: Installation of a modified Swearingen gear position indicator (P/N 27-82426-43)
- Applied: August 14, 1980
- Status date: December 8, 1980
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A5SW](https://openairdocs.org/tcds/A5SW), [TCDS A8SW](https://openairdocs.org/tcds/A8SW)
- Certificate PDF: https://openairdocs.org/files/sha256/67/a8/67a898437b7c6adba83cb42b7011430c07b318143ba26909a0ae787896d7e44f
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/090FBC3573586A0786257A07006E1E19.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1021NW

## ADs that name it (0)

None.

## Approved models (6)

- M7 Aerospace LP SA226-AT ([TCDS A5SW](https://openairdocs.org/tcds/A5SW))
- M7 Aerospace LP SA226-T ([TCDS A5SW](https://openairdocs.org/tcds/A5SW))
- M7 Aerospace LP SA226-T(B) ([TCDS A5SW](https://openairdocs.org/tcds/A5SW))
- M7 Aerospace LP SA226-TC ([TCDS A8SW](https://openairdocs.org/tcds/A8SW))
- M7 Aerospace LP SA26-AT ([TCDS A5SW](https://openairdocs.org/tcds/A5SW))
- M7 Aerospace LP SA26-T ([TCDS A5SW](https://openairdocs.org/tcds/A5SW))

## What the certificate says

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

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA1021NH This certificate issued to: American Avionics, Inc.

Part $ 3 of the CiVIl Air Regulations and ** 23 of the Federal Aviation Regulations.

Original Product - Type bertificate Number: * A5SW ** A8SW Make: Swear ingen Swear ingen Model: SA26-T, SA26-AT, SA226-T SA226-TC SA226-AT, and SA226-T(B) Descripling Jype Laign Change: Installation of a modified Swearingen gear position indicator (P/N 27-82426-43) in accordance with American Avionics, Inc. Modification Manual No. AAI-1000. The indicator may be further modified, as an option, with a dimming device installed in accordance with American Avionics, Inc. Modification Manual No. AA1-1100.

NOTE: The modification of the indicator enables the position signal bulbs to be changed without removing the indicator instrument from the aircraft panel.

to the above model aircraft only. Limitations and Conditions: Approval of this change in type design applies basically This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporated unless it is determined that the interrelationship between this change and any of those other previously approved modifications, including changes in type design, will introduce no adverse effect upon the airworthiness of that aircraft.

A copy of this Certificate shall be maintained as part of the permanent records for the modified aircraft.

This certificate and the supporting data which is the basis for approval shall remain in effect until sur rendered, suspended, revked, or a termination date is therwise established by the Administrator of the Federal Aviation Administration Date of Application: August 14, 1980 Date Reissued:

Date of Issuance: September 17, 1980 Date Amended: December 8, 1980 FEDERAL AVIATION Chales dietroder ( Signalure ) TOMINIST RAIDI Acting Chief, Seattle Area Aircraft Certification Office (Title)

**FAA FOR 8110-2 (10-68)**

## Every issue (1)

- December 8, 1980: Amended, Current. [certificate](https://openairdocs.org/files/sha256/67/a8/67a898437b7c6adba83cb42b7011430c07b318143ba26909a0ae787896d7e44f)

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