# STC SA2406SO

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: KLM Royal Dutch Airlines, United States
- Description: Installation of a Royal Class Divider. (747-238B)
- Status date: September 27, 1988
- 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/4ECA3F2EB06E825585256CC200015DCA.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA2406SO

## ADs that name it (0)

None.

## Approved models (3)

- The Boeing Company 747 ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))
- The Boeing Company 747-200B Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))
- The Boeing Company 747-300 Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.