# STC SA4890NM

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: ACSS (Aviation Communication and Surveillance Syst, United States
- Description: Installation of Honeywell vertical speed indicator/traffic resolution advisory (VSI/TRA) display.
- Status date: February 28, 2002
- 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/C5A28FFB16A0743685256CC2000E3F67.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4890NM

## ADs that name it (0)

None.

## Approved models (3)

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

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