# STC ST764SO

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Zantop Air Transport Inc, United States
- Description: Enlarged passageway in FS525 main cabin bulkhead.
- Status date: June 19, 1989
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 1A17](https://openairdocs.org/tcds/1A17)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/60A3D1253C9A160485256CC3000374A2.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST764SO

## ADs that name it (0)

None.

## Approved models (1)

- Gulfstream Aerospace Corporation G-159 ([TCDS 1A17](https://openairdocs.org/tcds/1A17))

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