# STC SA9048NM-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Midwest Express Airlines, United States
- Description: Installation of PTC model 850 business class seats with provisions only modification for GTE Airfone Installation. This STC approves mechanical and structural installation of the seat assemblies only.
- Status date: March 5, 2001
- 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/4EB9A1AB62D2D25185256CC20058EA0B.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA9048NM-D

## ADs that name it (0)

None.

## Approved models (2)

- McDonnell Douglas Corporation DC-9-10 Series ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- McDonnell Douglas Corporation DC-9-32 ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))

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