# STC SE464SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Signature Flight Support Corporation, United States
- Description: Installation of AC SR47P spark plugs.
- Status date: September 4, 1992
- Product: Engine
- Certification basis: Part 21
- Data sheets: [TCDS E-294](https://openairdocs.org/tcds/E-294), [TCDS E-310](https://openairdocs.org/tcds/E-310)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/1270A0F1CAB1410885256CC2005A7589.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SE464SW

## ADs that name it (0)

None.

## Approved models (4)

- Rolls-Royce Corporation Gipsy Queen 30 Mk.2 ([TCDS E-294](https://openairdocs.org/tcds/E-294))
- Rolls-Royce Corporation Gipsy Queen 70 MK2 ([TCDS E-310](https://openairdocs.org/tcds/E-310))
- Rolls-Royce Corporation Gipsy Queen 70 MK3 ([TCDS E-310](https://openairdocs.org/tcds/E-310))
- Rolls-Royce Corporation Gipsy Queen 70-4 ([TCDS E-310](https://openairdocs.org/tcds/E-310))

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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.