Aviation Accident Summary DEN88LA145

SIOUX FALLS, SD, USA

Aircraft #1

N62243

SIKORSKY S-58J

Analysis

N62243 WAS BEING USED TO LIFT AIR CONDITIONING UNITS TO THE TOP OF A SHOPPING MALL. THE PLT STATED THAT HE WAS ON THE 16TH LIFT OF THE DAY AND HAD JUST TAKEN OFF WHEN HE HEARD TWO LOUD POPS AND THE ENGINE LOST POWER. AFTER JETTISONING THE LOAD HE EXECUTED AN AUTOROTATIVE LANDING. ACCORDING TO THE PILOT THE AIRCRAFT MADE A VERY HARD LANDING. THE INVESTIGATION REVEALED THE ACCESSORY DRIVE AND STARTER SHAFT HAD SHEARED ON THE FORWARD END, IN THE SPLINED AREA.

 

Source: NTSB Aviation Accident Database

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