The Robinson Helicopter pilot’s operating handbook sections for operation in high winds or turbulence did not warn of the potential for turbulence-induced low‑G, and rapid right roll, particularly at high airspeed or provide guidance for appropriate control inputs in response to a turbulence-induced low‑G situation. This increased the risk of pilots encountering low‑G independent of control inputs, and an in‑flight break‑up.
Response by Robinson Helicopter Company
Robinson Helicopter Company (RHC) advised that it was currently reviewing and revising the pilot’s operating handbook, including the applicable safety notices, to improve guidance on the low-G condition, flight in turbulent conditions, and pilot distraction.
ATSB comment
The ATSB welcomes the documentation review being undertaken by RHC and will continue to monitor the safety issue until the proposed safety action is complete.
