May 30, 2013
CCS-76-AOL-13-0003
To:
Attention:
Subject:
All S-76® Operators
All S-76 Centers
All Field Service Representatives
Aviation Director
Chief of Maintenance
Chief Helicopter Pilot
S-76 Helicopter Event Notification
On the 23rd of May, Sikorsky Aircraft was informed that an S-76C++ Helicopter crew experienced difficulty maintaining yaw control. A successful run-on landing was made without incident. Replacement of the Pedal Damper/Trim Actuator corrected the problem.
The NTSB is actively investigating this event. Sikorsky and our supply chain are supporting their investigation. All operators will be notified if this investigation reveals any safety or airworthiness issues that affect the S-76 Helicopter fleet.
Sikorsky reminds all operators that compliance with publications including Maintenance Manuals, Operating Manuals, Alert Service Bulletins, and Sikorsky Safety Advisories is essential. Alert Service Bulletins provide a recommended maximum compliance time. Earlier compliance is always encouraged.