NTSB issued a safety alert warning pilots to train for partial as well as full power loss in multiengine piston aircraft. [Courtesy: Meg Godlewski]
Key Takeaways:
The NTSB issued Safety Alert SA091 due to multiengine accidents caused by pilots improperly managing propellers after single-engine power loss, particularly partial power loss.
A critical factor is the engagement of propeller "start locks" if RPM drops too low, which prevents feathering and creates significant drag, leading to a loss of control.
The NTSB emphasizes a gap in training for partial engine power loss compared to full loss, contributing to these control issues.
Pilots are urged to review and practice manufacturer procedures for both partial and full engine failure, understand the RPM threshold for feathering, and diligently apply the "identify, verify, fix or feather" mantra.
Meg Godlewski has been an aviation journalist for more than 24 years and a CFI for more than 20 years. If she is not flying or teaching aviation, she is writing about it. Meg is a founding member of the Pilot Proficiency Center at EAA AirVenture and excels at the application of simulation technology to flatten the learning curve. Follow Meg on Twitter @2Lewski.
