https://www.machinedesign.com/mechanical-motion-systems/article/55339701/8-common-reasons-causing-gear-failure
The causes of gear failure are diverse yet preventable—even tooth degradation and lubrication contamination. Following these steps ensures smooth-running...
common reasonsgear failuremachine designcausing
https://www.flightglobal.com/testbed-gear-failure-delays-comanche/6227.article
A SECOND FLIGHT of the Boeing Sikorsky RAH-66 Comanche scout/attack helicopter has been delayed until after completion of tests to determine why a gear failed...
gear failureflight globaltestbeddelayscomanche