# STC SA1961SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Aviation Material and Technical Support, United States
- Description: Installation of Entrance door counterbalance system.
- Applied: December 19, 1974
- Status date: April 4, 1996
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A2WE](https://openairdocs.org/tcds/A2WE)
- Certificate PDF: https://openairdocs.org/files/sha256/94/4c/944c78e1a2286807816da45ae17f73d6d348419bdf4b8e1f1d249ff3d1b81e7e
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/EA71652DC483BD4A86258060007448D3.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1961SW

## ADs that name it (0)

None.

## Approved models (4)

- Sabreliner Corporation NA-265-40 ([TCDS A2WE](https://openairdocs.org/tcds/A2WE))
- Sabreliner Corporation NA-265-60 ([TCDS A2WE](https://openairdocs.org/tcds/A2WE))
- Sabreliner Corporation NA-265-70 ([TCDS A2WE](https://openairdocs.org/tcds/A2WE))
- Sabreliner Corporation NA-265-80 ([TCDS A2WE](https://openairdocs.org/tcds/A2WE))

## What the certificate says

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

## Every issue (1)

- April 4, 1996: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/94/4c/944c78e1a2286807816da45ae17f73d6d348419bdf4b8e1f1d249ff3d1b81e7e)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.