# STC ST09877SC

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Ozark Aircraft Systems, United States
- Description: Installation of a recirculation return filter.
- Status date: June 3, 2001
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A16WE](https://openairdocs.org/tcds/A16WE)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0EE6C26E57B8852F85256CC300035ED9.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/ST09877SC

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 737-700 Series ([TCDS A16WE](https://openairdocs.org/tcds/A16WE))

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