# STC SA2-91

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Rockwell Collins Inc, United States
- Description: Installation of Collins Autopilot AP-101E.
- Status date: April 24, 2000
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A-765](https://openairdocs.org/tcds/A-765)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/831F729BE0C93E5885256CC10083D4FC.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA2-91

## ADs that name it (0)

None.

## Approved models (2)

- Raytheon Aircraft Company D18S ([TCDS A-765](https://openairdocs.org/tcds/A-765))
- Raytheon Aircraft Company E18S ([TCDS A-765](https://openairdocs.org/tcds/A-765))

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