# STC SH131WE

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: US Energy Corp, United States
- Description: Installation of EMPAC (U.S. Energy Corporation) Model TA-30 dual voltage alternator system(12 volts/60 amperes and28 volts/68 amperes) in lieu of12-volt alternator.
- Status date: July 7, 1971
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS 4H12](https://openairdocs.org/tcds/4H12)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F72F9F2316C14E0B85256CC2005C2E5D.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SH131WE

## ADs that name it (0)

None.

## Approved models (2)

- Schweizer Aircraft Corporation 269B ([TCDS 4H12](https://openairdocs.org/tcds/4H12))
- Schweizer Aircraft Corporation 269C ([TCDS 4H12](https://openairdocs.org/tcds/4H12))

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