Aviation Accident Summary ANC90LA147

JUNEAU, AK, USA

Aircraft #1

N26492

AEROSPATIALE AS-350-B

Analysis

SHORTLY ATER TAKEOFF, THE HELICOPTER EXPERIENCED A COMPLETE ENGINE FAILURE. THE PILOT MADE AN EMERGENCY LANDING ONTO AN OPEN LOT. THE ENGINE FAILURE WAS DUE TO A FAILURE AND SEPARATION OF THE TURBINE INTERMEDIATE PINION DRIVEN GEAR WEB UNIT.

Probable Cause and Findings

FAILURE OF THE FREE TURBINE INTERMEDIATE PINION DRIVEN GEAR AND SUBSEQUENT DISINTEGRATION OF THE FREE TURBINE ASSEMBLY.

 

Source: NTSB Aviation Accident Database

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