# STC SH1690SO

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Facet Filter Products, United States
- Description: Installation of Facet Aerospace engine oil scavenge filter kit No. 1741100.
- Status date: November 23, 1986
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS H9EU](https://openairdocs.org/tcds/H9EU)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A926CF4E2C71D35A85256CC2005C2EEB.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SH1690SO

## ADs that name it (0)

None.

## Approved models (1)

- Eurocopter France AS-350D ([TCDS H9EU](https://openairdocs.org/tcds/H9EU))

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