What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) N52241 departed centennial airport (apa) enroute to cheyenne, Wyoming. N360LL departed jefferson county airport (bjc) enroute to centennial (apa). Both aircraft were operating below class b airspace in VMC conditions. Both aircraft were in contact with Denver TRACON. N360LL'S mode c was inoperative. Traffic alert was issued by TRACON. Aircraft collided.
As the FAA filed it
(-23) N52241 DEPARTED CENTENNIAL AIRPORT (APA) ENROUTE TO CHEYENNE, WYOMING. N360LL DEPARTED JEFFERSON COUNTY AIRPORT (BJC) ENROUTE TO CENTENNIAL (APA). BOTH AIRCRAFT WERE OPERATING BELOW CLASS B AIRSPACE IN VMC CONDITIONS. BOTH AIRCRAFT WERE IN CONTACT WITH DENVER TRACON. N360LL'S MODE C WAS INOPERATIVE. TRAFFIC ALERT WAS ISSUED BY TRACON. AIRCRAFT COLLIDED.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.