# STC SE01604CH

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: National Flight Services, Inc, United States
- Description: Convert Honeywell TPE331-10AV-511B to a TPE331-10AV-511KA.
- Status date: January 4, 2002
- Product: Engine
- Certification basis: Part 21
- Data sheets: [TCDS E4WE](https://openairdocs.org/tcds/E4WE)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/819DD337015B85AE85256CC2005A73EB.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SE01604CH

## ADs that name it (0)

None.

## Approved models (1)

- AlliedSignal Inc. TPE331-10AV ([TCDS E4WE](https://openairdocs.org/tcds/E4WE))

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