# STC SA2109SW-AC

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Federal Aviation Administration
- Description: Modification of the attitude selection and annunciation system to keep the autopilot from disconnecting when selecting another source of attitude information.
- Status date: May 14, 1984
- Data sheets: A2SW
- Certificate PDF: https://openairdocs.org/files/sha256/67/05/67053cc7b32bf5e45988dc27b477ee20278c1228da831c6d51ae7d7e979d43e9
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/CDAB6BAD2AFCBB468625768700574017.0001
- Page: https://openairdocs.org/stc/SA2109SW-AC

## ADs that name it

None.

## Approved models (1)

- Israel Aircraft Industries Ltd. 1121B (TCDS A2SW)

## What the certificate says

The certificate is a scan without a text layer; open the PDF to read it.

## Every issue (1)

- May 14, 1984: Issued, Current. [certificate](https://openairdocs.org/files/sha256/67/05/67053cc7b32bf5e45988dc27b477ee20278c1228da831c6d51ae7d7e979d43e9)

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