What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
During a preflight inspection damage was discovered on some of the main rotor blades on N454JH.
The pilot notified the director of maintenance, who inspected the main rotor blades, and confirmed that there was repairable damage to 4 out of the 5 main rotor blades per mdhi csp HMI-2 maintenance manual.
The helicopter was taken out of service and the 4 damaged main rotor blades were replaced with serviceable main rotor blades.
As the FAA filed it
DURING A PREFLIGHT INSPECTION DAMAGE WAS DISCOVERED ON SOME OF THE MAIN ROTOR BLADES ON N454JH.
THE PILOT NOTIFIED THE DIRECTOR OF MAINTENANCE, WHO INSPECTED THE MAIN ROTOR BLADES, AND CONFIRMED THAT THERE WAS REPAIRABLE DAMAGE TO 4 OUT OF THE 5 MAIN ROTOR BLADES PER MDHI CSP HMI-2 MAINTENANCE MANUAL.
THE HELICOPTER WAS TAKEN OUT OF SERVICE AND THE 4 DAMAGED MAIN ROTOR BLADES WERE REPLACED WITH SERVICEABLE MAIN ROTOR BLADES.