# STC SE128NE

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: AMS/OIL, United States
- Description: Use of AMS/OIL 15W 50 synthetic piston aircraft oil in Avco engines.
- Status date: May 15, 1983
- Product: Engine
- Certification basis: Part 21
- Data sheets: [TCDS 1E1](https://openairdocs.org/tcds/1E1), [TCDS 1E10](https://openairdocs.org/tcds/1E10), [TCDS 1E11](https://openairdocs.org/tcds/1E11), [TCDS 1E12](https://openairdocs.org/tcds/1E12), [TCDS 1E13](https://openairdocs.org/tcds/1E13), [TCDS 1E14](https://openairdocs.org/tcds/1E14), [TCDS 1E15](https://openairdocs.org/tcds/1E15), [TCDS 1E4](https://openairdocs.org/tcds/1E4), [TCDS 1E7](https://openairdocs.org/tcds/1E7), [TCDS E-202](https://openairdocs.org/tcds/E-202), [TCDS E-223](https://openairdocs.org/tcds/E-223), [TCDS E-228](https://openairdocs.org/tcds/E-228), [TCDS E-229](https://openairdocs.org/tcds/E-229), [TCDS E-256](https://openairdocs.org/tcds/E-256), [TCDS E-274](https://openairdocs.org/tcds/E-274), [TCDS E-275](https://openairdocs.org/tcds/E-275), [TCDS E-276](https://openairdocs.org/tcds/E-276), [TCDS E-277](https://openairdocs.org/tcds/E-277), [TCDS E-279](https://openairdocs.org/tcds/E-279), [TCDS E-284](https://openairdocs.org/tcds/E-284) and 9 more
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/316CB194701B929885256CC2005A7449.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SE128NE

## ADs that name it (0)

None.

## Approved models (58, first 50)

- Textron Lycoming AVCO Corporation AEIO-320 Series ([TCDS 1E12](https://openairdocs.org/tcds/1E12))
- Textron Lycoming AVCO Corporation AEIO-360 Series ([TCDS 1E10](https://openairdocs.org/tcds/1E10))
- Textron Lycoming AVCO Corporation AEIO-540 Series ([TCDS 1E4](https://openairdocs.org/tcds/1E4))
- Textron Lycoming AVCO Corporation AIO Series ([TCDS 1E12](https://openairdocs.org/tcds/1E12))
- Textron Lycoming AVCO Corporation AIO-320 Series ([TCDS 1E12](https://openairdocs.org/tcds/1E12))
- Textron Lycoming AVCO Corporation AIO-360 Series ([TCDS 1E10](https://openairdocs.org/tcds/1E10))
- Textron Lycoming AVCO Corporation GO-435 Series ([TCDS E-228](https://openairdocs.org/tcds/E-228))
- Textron Lycoming AVCO Corporation GO-480 Series ([TCDS E-275](https://openairdocs.org/tcds/E-275))
- Textron Lycoming AVCO Corporation GSO-435 Series ([TCDS E-276](https://openairdocs.org/tcds/E-276))
- Textron Lycoming AVCO Corporation GSO-480 Series ([TCDS E-284](https://openairdocs.org/tcds/E-284))
- Textron Lycoming AVCO Corporation GSO-580 Series ([TCDS E-256](https://openairdocs.org/tcds/E-256))
- Textron Lycoming AVCO Corporation HIO-360 Series ([TCDS 1E10](https://openairdocs.org/tcds/1E10))
- Textron Lycoming AVCO Corporation HIO-540 Series ([TCDS 1E4](https://openairdocs.org/tcds/1E4))
- Textron Lycoming AVCO Corporation HO-360 Series ([TCDS E-286](https://openairdocs.org/tcds/E-286))
- Textron Lycoming AVCO Corporation IGO-480 Series ([TCDS E-275](https://openairdocs.org/tcds/E-275))
- Textron Lycoming AVCO Corporation IGO-540 Series ([TCDS 1E11](https://openairdocs.org/tcds/1E11))
- Textron Lycoming AVCO Corporation IGSO-480 Series ([TCDS E-284](https://openairdocs.org/tcds/E-284))
- Textron Lycoming AVCO Corporation IGSO-540 Series ([TCDS 1E7](https://openairdocs.org/tcds/1E7))
- Textron Lycoming AVCO Corporation IO-320 Series ([TCDS 1E12](https://openairdocs.org/tcds/1E12))
- Textron Lycoming AVCO Corporation IO-360 Series ([TCDS 1E10](https://openairdocs.org/tcds/1E10))
- Textron Lycoming AVCO Corporation IO-540 Series ([TCDS 1E4](https://openairdocs.org/tcds/1E4))
- Textron Lycoming AVCO Corporation IO-720 Series ([TCDS 1E15](https://openairdocs.org/tcds/1E15))
- Textron Lycoming AVCO Corporation IVO-360-A1A ([TCDS 1E1](https://openairdocs.org/tcds/1E1))
- Textron Lycoming AVCO Corporation LHIO-360 Series ([TCDS 1E10](https://openairdocs.org/tcds/1E10))
- Textron Lycoming AVCO Corporation LIO-320 Series ([TCDS 1E12](https://openairdocs.org/tcds/1E12))
- Textron Lycoming AVCO Corporation LIO-360-C1E6 ([TCDS 1E10](https://openairdocs.org/tcds/1E10))
- Textron Lycoming AVCO Corporation LO-360 Series ([TCDS E-286](https://openairdocs.org/tcds/E-286))
- Textron Lycoming AVCO Corporation LTIO-540 Series ([TCDS E14EA](https://openairdocs.org/tcds/E14EA))
- Textron Lycoming AVCO Corporation LTO-360 Series ([TCDS E26EA](https://openairdocs.org/tcds/E26EA))
- Textron Lycoming AVCO Corporation O-233-A1 ([TCDS E-223](https://openairdocs.org/tcds/E-223))
- Textron Lycoming AVCO Corporation O-235 Series ([TCDS E-223](https://openairdocs.org/tcds/E-223))
- Textron Lycoming AVCO Corporation O-290 Series ([TCDS E-229](https://openairdocs.org/tcds/E-229))
- Textron Lycoming AVCO Corporation O-320 Series ([TCDS E-274](https://openairdocs.org/tcds/E-274))
- Textron Lycoming AVCO Corporation O-340 Series ([TCDS E-277](https://openairdocs.org/tcds/E-277))
- Textron Lycoming AVCO Corporation O-360 Series ([TCDS E-286](https://openairdocs.org/tcds/E-286))
- Textron Lycoming AVCO Corporation O-435 Series ([TCDS E-279](https://openairdocs.org/tcds/E-279))
- Textron Lycoming AVCO Corporation O-540 Series ([TCDS E-295](https://openairdocs.org/tcds/E-295))
- Textron Lycoming AVCO Corporation R-680 Series ([TCDS E-202](https://openairdocs.org/tcds/E-202))
- Textron Lycoming AVCO Corporation SO-580 ([TCDS E-285](https://openairdocs.org/tcds/E-285))
- Textron Lycoming AVCO Corporation SO-580-A1A ([TCDS E-285](https://openairdocs.org/tcds/E-285))
- Textron Lycoming AVCO Corporation SO-580-A1B ([TCDS E-285](https://openairdocs.org/tcds/E-285))
- Textron Lycoming AVCO Corporation TIGO-541-B1A ([TCDS E19EA](https://openairdocs.org/tcds/E19EA))
- Textron Lycoming AVCO Corporation TIGO-541-C1A ([TCDS E19EA](https://openairdocs.org/tcds/E19EA))
- Textron Lycoming AVCO Corporation TIGO-541-D1A ([TCDS E19EA](https://openairdocs.org/tcds/E19EA))
- Textron Lycoming AVCO Corporation TIGO-541-D1B ([TCDS E19EA](https://openairdocs.org/tcds/E19EA))
- Textron Lycoming AVCO Corporation TIGO-541-E1A ([TCDS E19EA](https://openairdocs.org/tcds/E19EA))
- Textron Lycoming AVCO Corporation TIGO-541-G1AD ([TCDS E19EA](https://openairdocs.org/tcds/E19EA))
- Textron Lycoming AVCO Corporation TIO-360 Series ([TCDS E16EA](https://openairdocs.org/tcds/E16EA))
- Textron Lycoming AVCO Corporation TIO-540 Series ([TCDS E14EA](https://openairdocs.org/tcds/E14EA))
- Textron Lycoming AVCO Corporation TIO-541 Series ([TCDS E10EA](https://openairdocs.org/tcds/E10EA))

All 58: https://openairdocs.org/stc/SE128NE/models.md

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