From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Caught up with and collided with helicopter 3913Z because the other helicopter made a 360 degree turn before final.
As the FAA filed it
CAUGHT UP WITH AND COLLIDED WITH HELICOPTER 3913Z BECAUSE THE OTHER HELICOPTER MADE A 360 DEGREE TURN BEFORE FINAL.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.