# STC SA3-155

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Queeny Edgar M, United States
- Description: Bulkhead doors.
- Status date: January 1, 1961
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 785](https://openairdocs.org/tcds/785)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F56A197DD0937484862570D50078C90F.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA3-155

## ADs that name it (0)

None.

## Approved models (1)

- General Dynamics Corporation 28-5ACF ([TCDS 785](https://openairdocs.org/tcds/785))

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