# STC SA1-544

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: R H Haynes, Inc, United States
- Description: External electrical power receptacle.
- Status date: October 15, 1974
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 1A15](https://openairdocs.org/tcds/1A15)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7CC65F7EC37AA96A85256CCB00601825.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1-544

## ADs that name it (0)

None.

## Approved models (1)

- The New Piper Aircraft Inc. PA-24-250 ([TCDS 1A15](https://openairdocs.org/tcds/1A15))

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