# STC SP4WE

- Type: Supplemental type certificate
- Status: Current, Surrendered
- Holder: Flying Tiger Line Inc, United States
- Description: Propeller blade heaters relocation.
- Status date: April 14, 2008
- Product: Propeller
- Certification basis: Part 21
- Data sheets: [TCDS 7P3](https://openairdocs.org/tcds/7P3)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FDA87320C221A86D8625742E005D63EF.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SP4WE

## ADs that name it (0)

None.

## Approved models (1)

- Hawker Siddeley Dynamics Limited PD-/476 ([TCDS 7P3](https://openairdocs.org/tcds/7P3))

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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.