# STC ST31CH

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Gulfstream Aerospace Corporation, United States
- Description: Modification of Honeywell EDZ-815EFIS w/MFD system.
- Status date: March 1, 1999
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A21EA](https://openairdocs.org/tcds/A21EA)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DA4353EBCB9C427785256CC300035FB7.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST31CH

## ADs that name it (0)

None.

## Approved models (3)

- Bombardier Inc. CL-600-2B16 (CL-601-3A) ([TCDS A21EA](https://openairdocs.org/tcds/A21EA))
- Bombardier Inc. CL-600-2B16 (CL-601-3R) ([TCDS A21EA](https://openairdocs.org/tcds/A21EA))
- Bombardier Inc. CL-600-2B16 (CL-604) ([TCDS A21EA](https://openairdocs.org/tcds/A21EA))

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