Propeller Problems

During a routine training flight, the right engine was intentionally shut down to demonstrate inflight restarts. After a normal shutdown and securing procedure, the engine master switch was switched back to on per the checklist. Usually, this drives the propeller out of feather, and the restart procedure is continued. Instead, the propeller did not unfeather, even after attempting several troubleshooting procedures. The flight returned safely on the left engine.

Key Takeaways:

• A variety of propeller issues stemmed from improper maintenance and overhaul practices, including incorrect torquing, unapproved modifications, and faulty adjustments.
• These deficiencies led to critical operational failures, such as loose assemblies, unfeathering malfunctions, and inability to maintain desired RPM, posing significant flight safety risks.

Key takeaways sponsored by Aviator Pro | Start Your Training ->

See a mistake? Contact us.