# STC SE74WE

- 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.
- Applied: December 27, 1974
- Status date: January 28, 1975
- Product: Engine
- Certification basis: Part 21
- Data sheets: [TCDS E7CE](https://openairdocs.org/tcds/E7CE)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/819DC373778BDD4A85256CC2005C2D20.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SE74WE

## ADs that name it (0)

None.

## Approved models (2)

- Teledyne Continental Motors GTSIO-520-C ([TCDS E7CE](https://openairdocs.org/tcds/E7CE))
- Teledyne Continental Motors GTSIO-520-D ([TCDS E7CE](https://openairdocs.org/tcds/E7CE))

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