Helicopter Accidents

Year 1985 accidents

Sikorsky S-65 H-53 Accidents

Year	Version	C/N
1985	ch-53d	65-231	157138 : 17 Marines died, 11 from HMH-462, 15 miles south of Yakushima, Japan. Main rotor gearbox failed, ceased mid-air while trying to set a/c in the water due to the mechanical failure emergency
1985	hh-53c	65-185	68-10355 : MRB BIM caution light came on enroute to ship. When acft entered a hover over ship, the MRB failed and part of it separated. The ensuing severe out of balance condition caused the acft to shake itself apart and it crashed on the ship. This acft had the old aluminum spar MRBs. Back then you could continue flight with airspeed/time restrictions when a BIM light came on.
1985	S-65C-3	65-344	247 : Sikorsky S-65C-3, c/n 65-344 ff?; retained by Sikorsky for testing as N4003S; del IDF/AF as S-65C Yasur 247, Jul71; w/o 13Jun85.