# STC SA1198EA

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: UNC Accessory Service, United States
- Description: Installation of a Safeway deicer boot P/N 5939 and/or Semsa lead assembly P/N S.2001 on Dowty Rotol propeller model R209/4-40-4.5/2.
- Status date: April 26, 1995
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A1PC](https://openairdocs.org/tcds/A1PC)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5DFEA19583C9F55E85256CCB0060184A.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1198EA

## ADs that name it (0)

None.

## Approved models (5)

- Mitsubishi Heavy Industries Ltd. YS-11 ([TCDS A1PC](https://openairdocs.org/tcds/A1PC))
- Mitsubishi Heavy Industries Ltd. YS-11A-200 ([TCDS A1PC](https://openairdocs.org/tcds/A1PC))
- Mitsubishi Heavy Industries Ltd. YS-11A-300 ([TCDS A1PC](https://openairdocs.org/tcds/A1PC))
- Mitsubishi Heavy Industries Ltd. YS-11A-500 ([TCDS A1PC](https://openairdocs.org/tcds/A1PC))
- Mitsubishi Heavy Industries Ltd. YS-11A-600 ([TCDS A1PC](https://openairdocs.org/tcds/A1PC))

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