# STC SA1761SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: National Aircraft Leasing Ltd, United States
- Description: Dual Collins INS 61B inertial navigation systems.
- Status date: March 20, 1974
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A5EU](https://openairdocs.org/tcds/A5EU)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F6C8DEAE5241F33E85256CC10083D003.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1761SW

## ADs that name it (0)

None.

## Approved models (1)

- British Aerospace Airbus Limited 1-11 Series ([TCDS A5EU](https://openairdocs.org/tcds/A5EU))

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