# STC SE73WE

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Lewis Leibee, United States
- Description: BG-341 spark plug as eligible for installation on listed Continental engines.
- Status date: January 28, 1975
- Product: Engine
- Certification basis: Part 21
- Data sheets: [TCDS E8CE](https://openairdocs.org/tcds/E8CE)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/EACCD2D65CCDE0AA85256CC2005C2D13.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SE73WE

## ADs that name it (0)

None.

## Approved models (10)

- Teledyne Continental Motors TSIO-520-A ([TCDS E8CE](https://openairdocs.org/tcds/E8CE))
- Teledyne Continental Motors TSIO-520-B ([TCDS E8CE](https://openairdocs.org/tcds/E8CE))
- Teledyne Continental Motors TSIO-520-C ([TCDS E8CE](https://openairdocs.org/tcds/E8CE))
- Teledyne Continental Motors TSIO-520-D ([TCDS E8CE](https://openairdocs.org/tcds/E8CE))
- Teledyne Continental Motors TSIO-520-E ([TCDS E8CE](https://openairdocs.org/tcds/E8CE))
- Teledyne Continental Motors TSIO-520-G ([TCDS E8CE](https://openairdocs.org/tcds/E8CE))
- Teledyne Continental Motors TSIO-520-H ([TCDS E8CE](https://openairdocs.org/tcds/E8CE))
- Teledyne Continental Motors TSIO-520-J ([TCDS E8CE](https://openairdocs.org/tcds/E8CE))
- Teledyne Continental Motors TSIO-520-K ([TCDS E8CE](https://openairdocs.org/tcds/E8CE))
- Teledyne Continental Motors TSIO-520-L ([TCDS E8CE](https://openairdocs.org/tcds/E8CE))

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