# STC SA1740CE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Duncan Aviation, Inc, United States
- Description: Installation of chemical toilet.
- Applied: April 28, 1982
- Status date: November 15, 1983
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A10CE](https://openairdocs.org/tcds/A10CE)
- Certificate PDF: https://openairdocs.org/files/sha256/fc/2a/fc2ac3c43e7240657edbe84cc00ad3fe7648ac6b78432fa42aa9f7db380e3a5a
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B736D0A63406A24585256CC10083CFB5.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1740CE

## ADs that name it (0)

None.

## Approved models (4)

- Learjet Inc. Learjet 35 Series ([TCDS A10CE](https://openairdocs.org/tcds/A10CE))
- Learjet Inc. Learjet 35A (C-21A) ([TCDS A10CE](https://openairdocs.org/tcds/A10CE))
- Learjet Inc. Learjet 36 ([TCDS A10CE](https://openairdocs.org/tcds/A10CE))
- Learjet Inc. Learjet 36A ([TCDS A10CE](https://openairdocs.org/tcds/A10CE))

## What the certificate says

The certificate is a scan without a text layer; open the PDF to read it.

## Every issue (1)

- November 15, 1983: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/fc/2a/fc2ac3c43e7240657edbe84cc00ad3fe7648ac6b78432fa42aa9f7db380e3a5a)

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