# STC SA4086WE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Learjet Inc, United States
- Description: Installation of Sperry SPI-80 flight director system.
- Status date: June 22, 1990
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A10CE](https://openairdocs.org/tcds/A10CE)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/04B02B101AD958E785256CC2000C60B0.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA4086WE

## ADs that name it (0)

None.

## Approved models (2)

- Learjet Inc. Learjet 35 ([TCDS A10CE](https://openairdocs.org/tcds/A10CE))
- Learjet Inc. Learjet 35A (C-21A) ([TCDS A10CE](https://openairdocs.org/tcds/A10CE))

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