1. Main gearbox malfunction/collision with water, aviation investigation report (A09A0016);Transportation Safety Board of Canada,2009
2. Certification specifications for large rotorcraft CS-29 (amendment 3);European Aviation Safety Agency,2012
3. Aeronautical design standard: rotorcraft propulsion performance and qualification requirements and guidelines;Ads-50-PRF,1996
4. A review of scuffing models;Bowman;Tribol Lett,1996
5. The effects of surface roughening and protective film formation on scuff initiation in boundary lubrication;Lee,1991