# STC SA3-649

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Minneapolis-Honeywell Regulator Co., United States
- Description: Maximum safety light system YG-766A or ALS9A-CV.
- Status date: January 1, 1960
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 6A6](https://openairdocs.org/tcds/6A6)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9762415373EA7AA6862570CB0059FFDC.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3-649

## ADs that name it (0)

None.

## Approved models (2)

- Tracor Flight Systems Inc. 340 ([TCDS 6A6](https://openairdocs.org/tcds/6A6))
- Tracor Flight Systems Inc. 440 Military C-131E ([TCDS 6A6](https://openairdocs.org/tcds/6A6))

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