We propose to adopt a new airworthiness directive (AD) for Airbus Helicopters Model AS355E, AS355F, AS355F1, AS355F2, and AS355N helicopters. This proposed AD would require measuring a vibration level in the tail rotor (T/R) drive. This proposed AD is prompted by reports of bearing degradation. The actions of this proposed AD are intended to prevent an unsafe condition on these helicopters.
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Airworthiness Directives; Airbus Helicopters
We propose to adopt a new airworthiness directive (AD) for Airbus Helicopters Model AS355E, AS355F, AS355F1, AS355F2, and AS355N helicopters. This proposed AD would require meas...
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83 FR 22886
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“Airworthiness Directives; Airbus Helicopters,” thefederalregister.org (May 17, 2018), https://thefederalregister.org/documents/2018-10494/airworthiness-directives-airbus-helicopters.