BELL 407GX — Service Bulletins
2 service bulletins references for the BELL 407GX.
Overview
TECHNICAL BULLETIN 407-20-135 · 2026
This technical bulletin provides instructions for modifying the Automatic Flight Control System (AFCS) on specific Bell 407 helicopters. The modification allows for monitoring of the force trim electrical power via the Integrated Avionics System in preparation for a software update.
- Applicable to Bell 407 helicopters with specific serial numbers.
- Modification is optional for customers.
- Requires approximately 24 man-hours to complete.
- No warranty credit for parts or labor associated with this bulletin.
- Specific materials and tools are required for the modification.
- Engineering design aspects are approved by Transport Canada Civil Aviation.
- Functional checks are required post-modification.
- Compliance must be logged in the helicopter's records.
2 documents
BELL 407GX — Service Bulletins FAQ
How many Service Bulletins documents does Sprinkle have for the BELL 407GX?
Sprinkle has 2 Service Bulletins documents on file for the BELL 407GX.
What year is the BELL 407GX Service Bulletins?
The BELL 407GX Service Bulletins on file is dated 2026.
Where does Sprinkle's BELL 407GX Service Bulletins come from?
This BELL 407GX Service Bulletins was originally published by bellcustomer.com and is hosted on Sprinkle with full text and specs.