A small plane crashed onto the roof of a commercial building in Pomona, California, on May 8th.
The Piper PA-28 aircraft was heading to Brackett Field Airport, La Verne, when it went down under unknown circumstances.
There were two people aboard at the time; one of them was taken to hospital.
The incident is being investigated.
A drone crashed into the 40th floor of the Empire State Building in New York, on February 4.
According to the owner Sean Nivin Riddle, 29, all he wanted “was to shoot 5 seconds of video to promote a non-profit”. The drone ended up in a landing on the 35th floor.
No injuries were reported.
Riddle was taken into custody after the incident. He is facing charges of illegal aviation in and over the city, and reckless endangerment.
A Civil Air Patrol (CAP) plane clipped an office building and crashed into a commercial building in downtown Anchorage, Alaska, early morning on December 29.
Authorities said the Cessna 172, piloted by Doug Demarest, 42, of Anchorage, crashed into the Brady Building and the nearby Whale Building before igniting a fire.
Demarest, who is believed to be the only one aboard, was killed in the crash. He was first lieutenant with the CAP.
No one on the ground was injured.
The FAA and the NTSB are investigating.