One of the S-70A Firehawk helicopters operated by the Los Angeles County Fire Department suffered a rotor strike last week while the personnel were conducting training. Video posted on social media (see below) recorded the event. As Helicopter 16 (N160LA) appeared to be settling down to a landing, a main rotor blade struck a large rock. You can hear the impact and the sound of the helicopter was then very different, changing to a whop-whop-whop that reminded me of the sound of a Huey.
After the impact the ship immediately begin lifting and flew off out of sight. It was later photographed in a field where personnel on a ladder were inspecting one of the main rotor blades.
The knowledgeable person I talked to did not want to have their name disclosed since they were not authorized to discuss the incident in detail.
The helicopter has been repaired and is back in service. The incident occurred around July 30.
Warning: the video below that shows the rotor strike has coarse language.
The two brand new S-70i Firehawks that arrived at the Barton Heliport in Pacoima August 4 are basically ready to fight fire. One is 100 percent ready and the other is undergoing some minor changes to the seats. With this boost to the fleet the LACoFD now has 10 helicopters — 5 Firehawks and 5 Bell 412 ships.
The article was edited August 8, 2020 to show that the helicopter involved in the mishap was an S-70A rather than an S-70i.