# STC SA3881WP

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Riley Aircraft Corp, United States
- Description: Installation of dual elevator trim tab actuator.
- Status date: January 7, 1982
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A7CE](https://openairdocs.org/tcds/A7CE)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5E9D1E3FCD011FFD85256CC2000C5B49.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3881WP

## ADs that name it (0)

None.

## Approved models (2)

- The Cessna Aircraft Company 421B ([TCDS A7CE](https://openairdocs.org/tcds/A7CE))
- The Cessna Aircraft Company 421C ([TCDS A7CE](https://openairdocs.org/tcds/A7CE))

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