PRODUCTS AFFECTED:

GFC 600H systems installed under the GFC 600H Part 27 STC SR02647SE in Airbus Helicopters AS350 BA, B2 and B3 models are affected.

CERTIFICATION AUTHORIZATION:

STC SR02647SE

COMPLIANCE:

Optional: This STC service bulletin may be incorporated at the owner’s discretion.

DOCUMENTATION CONSIDERATIONS:

The following documents are required to be issued to the aircraft operator/owner before the aircraft is returned to service.

Table 1 - Documentation Considerations

Document Title	Part Number	Revision (or later)
GFC 600H, Helicopter Flight Controls System, Part 27 STC, Maintenance Manual	190-02081-03	4
FAA Approved Rotorcraft Flight Manual Supplement, GFC 600H Helicopter Flight Control System, Installed in Airbus Helicopters AS350 BA / B2 / B3	190-02081-02	5

PURPOSE:

This STC Service Bulletin provides notification of an update to STC SR02647SE Master Drawing List to Revision 12.

Major details of the update are:

GMC 605 Software Version 2.62 and GFS 83 Software Version 2.05.1:
- Optional interface to the existing collective switch was approved for Yaw Trim functionality
- Configurable GPS antenna location settings
- Heading mode improvements such as:
  - GPS track reversion
  - Automatic heading reference adjustment during mode engagement
  - Lateral switch inputs
- Audio clips for features such as:
  - Yaw fail indication
  - AP test status
  - Limit cue enablement
- Mode annunciations for features such as:
  - Attitude hold
  - Ground speed
  - GPS track
  - Hover
  - On-ground status
Optional wiring architecture for connecting the co-pilot collective switch for a second Yaw Damp On/Off functionality
Approved GMU 44 Mod Status 1 hardware and approved interface with G500H TXi display part numbers (-X2)

WARRANTY INFORMATION:

This modification is not warranty reimbursable.