# STC SA1943SO

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Northwest Airlines, Inc, United States
- Description: Modification of lavatory waste containers.
- Status date: January 7, 1987
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A6WE](https://openairdocs.org/tcds/A6WE)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/1057986767933A8E85256CC10083D319.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1943SO

## ADs that name it (0)

None.

## Approved models (4)

- McDonnell Douglas Corporation DC-9-10 Series ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- McDonnell Douglas Corporation DC-9-30 Series ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- McDonnell Douglas Corporation DC-9-51 ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- McDonnell Douglas Corporation DC-9-81 (MD-81) ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))

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