What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) While on a flight originating from Venice Municipal Airport the pilot heard a loud grinding noise in flight. A precautionary landing was made at sorento shores and while operating the helicopter at 100% on the ground, the cooling fan assembly shaft broke. This allowed the rotating fan assy to impact the shroud assembly causing damage. Investigation did not indicate any improper maintenance or operation. A malfunction defect report (FAA form 8010-4) was filed on the cooling fan shaft p/n A642-2.
As the FAA filed it
(-23) WHILE ON A FLIGHT ORIGINATING FROM VENICE MUNICIPAL AIRPORT THE PILOT HEARD A LOUD GRINDING NOISE IN FLIGHT. A PRECAUTIONARY LANDING WAS MADE AT SORENTO SHORES AND WHILE OPERATING THE HELICOPTER AT 100% ON THE GROUND, THE COOLING FAN ASSEMBLY SHAFT BROKE. THIS ALLOWED THE ROTATING FAN ASSY TO IMPACT THE SHROUD ASSEMBLY CAUSING DAMAGE. INVESTIGATION DID NOT INDICATE ANY IMPROPER MAINTENANCE OR OPERATION. A MALFUNCTION DEFECT REPORT (FAA FORM 8010-4) WAS FILED ON THE COOLING FAN SHAFT P/N A642-2.