# STC SA887SO

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Teledyne Battery Products, United States
- Description: Installation of Teledyne P/N BB638/T- Series lead-acid replacement batteries.
- Status date: April 29, 1996
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 2A4](https://openairdocs.org/tcds/2A4)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9C3D6F092217449F85256CC20058E94E.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA887SO

## ADs that name it (0)

None.

## Approved models (3)

- Twin Commander Aircraft Corporation 680T ([TCDS 2A4](https://openairdocs.org/tcds/2A4))
- Twin Commander Aircraft Corporation 680V ([TCDS 2A4](https://openairdocs.org/tcds/2A4))
- Twin Commander Aircraft Corporation 680W ([TCDS 2A4](https://openairdocs.org/tcds/2A4))

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