![]() ![]() See our past article: Inappropriate Autorotation Training. In accordance with the FAA Advisory Circular(AC) No: 61-140A on Autorotation Training, most recorded autorotation exercise related accidents have been attributed to their recovery phase (transition back to powered flight), at the position, at 1,000 ft, where the pilot attempted his recovery, there was no land close enough for the pilot to land the helicopter in any emergency descent. This was evident because he commenced the autorotation along his normal flight track when the aircraft reached nominated entry altitude 3,000 ft. The pilot did not consider the position and distance from land when he planned and conducted the autorotation exercise. The pilot (a 51-year-old New Zealander with 6549 total fly hours, 346 on type) told investigators that he descended to about 3000 ft and commenced an autorotation exercise “to check the autorotation RPM which had been adjusted by the engineers during an unscheduled maintenance activity the day before”. ![]() Route of Ditched Niugini Helicopters Bell 427 P2-HSG (Credit: PNG AIC) ![]()
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