# STC SA502EA-D

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: American Airlines Inc, United States
- Description: Install a triple class cabin divider to partition the area between the economy and coach passengers.
- Status date: November 17, 1967
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 4A21](https://openairdocs.org/tcds/4A21), [TCDS 4A28](https://openairdocs.org/tcds/4A28)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/CBADC58824B1BC3885256CC200122620.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA502EA-D

## ADs that name it (0)

None.

## Approved models (2)

- The Boeing Company 707 ([TCDS 4A21](https://openairdocs.org/tcds/4A21))
- The Boeing Company 720 Series ([TCDS 4A28](https://openairdocs.org/tcds/4A28))

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