![]() ![]() The “V” shape causes the belt to wedge tightly into the groove, increasing friction and allowing increased torque to be transmitted. Originally, the R22 had four individual V-belts to accomplish this task, each with their own groove in the upper and lower sheave. North American Route>ĪNN's Daily Aero-Term (10.07.Of course, the purpose of the drive belts is to transmit power from the engine to the helicopter drive train, through the two gearboxes then on to the main and tail rotor systems. North American Route A numerically coded route preplanned over existing airway and route systems to and from specific coastal fixes serving the North Atlantic. “The International Space Station continues to serve a critical role in helping NASA and our partners understand and maximize the unique attributes of the microgravity environ>ĪNN's Daily Aero-Term (10.06.22): North American Route More News One Life Lost in East Hampton Seamax M-22 AccidentĮxperienced Aerobatic Pilot Mourned by Local Aviation Community An accident described by witnesses as the in-flight breakup of a Seamax M-22 has claimed the life of 57-year-old Ken> It is recommended that any positive findings be reported to the Robinson Helicopter Company. If unusual rotor system vibration is detected in flight, land immediately and have blades examined by a qualified technician. If any damage is detected, the blade should be thoroughly examined by a qualified technician prior to further flight. Check in the area shown on the Robinson Safety Alert C016-7 Main Rotor Blade Crack, dated February 23, 2015. ![]() The FAA says that as part of the daily preflight inspection, the trailing edge of the main rotor blade on the upper and lower surfaces of the blade (a stepladder may be necessary) should be visually checked for any damage which may initiate a fatigue crack. The FAA says that at this time, the airworthiness concern is not an unsafe condition that would warrant airworthiness directive (AD) action under Title 14 of the Code of Federal Regulations (14 CFR) part 39. Robinson Helicopter Company subsequently released R44 Safety Alert C016-7 Main Rotor Blade Crack on Februrecommending a preflight visual inspection of the trailing edge of the main rotor blade for any evidence of a fatigue crack initiation.Īustralia's Civil Aviation Safety Authority (CASA) issued an emergency airworthiness directive grounding certain Robinson R44 helicopters operating in that country following the New Zealand accident. The New Zealand CAA released Continuing Airworthiness Notice – 62-003 on Janurecommending a pre-flight inspection of this area. The aircraft was difficult to control during the subsequent emergency landing. The FAA has received a report from New Zealand of an in-flight failure of the main rotor blade on a Robinson R44 II helicopter which resulted in severe main rotor vibration. The FAA has issues a Special Airworthiness Information Bulletin (SAIB SW-15-08) directed towards owners and operators of Robinson Helicopter Company model R44 and R44 II helicopters which have installed main rotor blades with part number C016-7 of a fatigue crack occurrence, and suggests a preflight check for signs of a fatigue crack on the trailing edge of the blade. Aircraft Grounded In Australia After Fatal Accident In New Zealand
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