# STC SA2178CE

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Trans World Airlines Inc, United States
- Description: Installation of Luminescent floor proximity emergency escape path marking system.
- Status date: June 25, 1986
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A20WE](https://openairdocs.org/tcds/A20WE)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D1EF02DCAD065DC585256CC200015AA7.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2178CE

## ADs that name it (0)

None.

## Approved models (2)

- The Boeing Company 747-100 Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))
- The Boeing Company 747-200B Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))

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