# STC SA1894SO

- Type: Supplemental type certificate
- Status: Current, Surrendered
- Holder: Aeronautical Engineers, Inc, United States
- Description: Installation of a roller system for Type C containers.
- Applied: September 18, 1985
- Status date: October 19, 2009
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A6WE](https://openairdocs.org/tcds/A6WE)
- Certificate PDF: https://openairdocs.org/files/sha256/96/d3/96d308b0133bc7ed4d24bc24f004f5e0e73f2431e8f3d87c5e62c9e582bb012c
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E3960CC6038317FF8625778F0045E282.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1894SO

## ADs that name it (0)

None.

## Approved models (7)

- McDonnell Douglas Corporation DC-9-31 ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- McDonnell Douglas Corporation DC-9-32 ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- McDonnell Douglas Corporation DC-9-32F ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- McDonnell Douglas Corporation DC-9-33F ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- McDonnell Douglas Corporation DC-9-34 ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- McDonnell Douglas Corporation DC-9-34F ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- McDonnell Douglas Corporation DC-9-41 ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))

## What the certificate says

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

## Every issue (1)

- October 19, 2009: Surrendered, Current. [certificate](https://openairdocs.org/files/sha256/96/d3/96d308b0133bc7ed4d24bc24f004f5e0e73f2431e8f3d87c5e62c9e582bb012c)

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