# STC SA3725NM

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: IFR Avionics, Inc, United States
- Description: Installation of Sperry EDZ-603 five tube Electronic Flight Instrument System and Sperry Primus 650 weather radar system.
- Status date: June 5, 1987
- 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/726FE41036E3786985256CC2000C5A02.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3725NM

## ADs that name it (0)

None.

## Approved models (4)

- Learjet Inc. Learjet 35 ([TCDS A10CE](https://openairdocs.org/tcds/A10CE))
- Learjet Inc. Learjet 35A (C-21A) ([TCDS A10CE](https://openairdocs.org/tcds/A10CE))
- Learjet Inc. Learjet 36 ([TCDS A10CE](https://openairdocs.org/tcds/A10CE))
- Learjet Inc. Learjet 36A ([TCDS A10CE](https://openairdocs.org/tcds/A10CE))

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