# STC SA3221SO

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Kosola & Associates Inc, United States
- Description: Removal of existing aluminum battery and starter cables and replacement of these cables with copper cables.
- Status date: April 29, 1992
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A7SO](https://openairdocs.org/tcds/A7SO)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/CF2F825AE0DA249185256CC2000A9577.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3221SO

## ADs that name it (0)

None.

## Approved models (1)

- The New Piper Aircraft Inc. PA-34-200T ([TCDS A7SO](https://openairdocs.org/tcds/A7SO))

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