Notar Helos under NTSB Microscope

Aviation International News » May 2006
September 18, 2006, 10:16 AM

The NTSB has asked the FAA to require MD Helicopters to conduct tests to “enable the full analysis” of all critical loads for tension-torsion (T-T) straps installed in the Notar anti-torque fan of MD 500Ns, 600Ns and 900s. The recommendations stem from the Safety Board’s ongoing investigations into two nonfatal accidents involving MD 900s in 2004. The agency wants rules to “require changes in the inspection and replacement of the T-T straps” and the removal of T-T straps that show signs of “progressive fiber fractures and longitudinal cracks.”

Share this...

Please Register

In order to leave comments you will now need to be a registered user. This change in policy is to protect our site from an increased number of spam comments. Additionally, in the near future you will be able to better manage your AIN subscriptions via this registration system. If you already have an account, click here to log in. Otherwise, click here to register.