# STC SA4830NM

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Intl Valve Co, United States
- Description: Installation of Floor proximity emergency escape path markings system. (757-200 CB SERIES)
- Status date: January 12, 1990
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A2NM](https://openairdocs.org/tcds/A2NM)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8B0EC6C6D40C5FFE85256CC2000E3EFC.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4830NM

## ADs that name it (0)

None.

## Approved models (2)

- The Boeing Company 757-200 ([TCDS A2NM](https://openairdocs.org/tcds/A2NM))
- The Boeing Company 757-200 Series ([TCDS A2NM](https://openairdocs.org/tcds/A2NM))

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