# STC SH1879SO

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Facet Filter Products, United States
- Description: Install lubrication oil scavenge filter.
- Status date: May 1, 1990
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS H9SW](https://openairdocs.org/tcds/H9SW)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E1105F98E3B3F8BB85256CC2005C2F36.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SH1879SO

## ADs that name it (1)

- [AD 87-19-01](https://openairdocs.org/ad/87-19-01): Stc Sh479gl Labels · Lubrication oil scavenge filter is installed in the existing… (Facet Filter Products STC SH1853SO or 3 others). Effective Dec 18, 1987. Named in the applicability

## Approved models (3)

- Bell Helicopter Textron (Canada) 222 ([TCDS H9SW](https://openairdocs.org/tcds/H9SW))
- Bell Helicopter Textron (Canada) 222B ([TCDS H9SW](https://openairdocs.org/tcds/H9SW))
- Bell Helicopter Textron (Canada) 222U ([TCDS H9SW](https://openairdocs.org/tcds/H9SW))

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