What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) Pilot stated he was doing usfs forest firefighting work, water bucket props. Conditions were smoky. He said he was not aware the rotors had struck anything until damage to two rotors was discovered in this post-flight aircraft inspection. The rotors sustained substantial trailing edge damage requiring rotor replacement.
As the FAA filed it
(-23) PILOT STATED HE WAS DOING USFS FOREST FIREFIGHTING WORK, WATER BUCKET PROPS. CONDITIONS WERE SMOKY. HE SAID HE WAS NOT AWARE THE ROTORS HAD STRUCK ANYTHING UNTIL DAMAGE TO TWO ROTORS WAS DISCOVERED IN THIS POST-FLIGHT AIRCRAFT INSPECTION. THE ROTORS SUSTAINED SUBSTANTIAL TRAILING EDGE DAMAGE REQUIRING ROTOR REPLACEMENT.