A two-year investigation has found a pilot who was texting while flying was a major reason for a deadly helicopter crash in Missouri.
Investigators said the pilot was distracted by his personal electronic device.
They found he was texting, at least a half dozen times, while flying.
NTSB investigators said even after the pilot realized the airborne chopper was low on fuel he was still texting.
The chopper running out of fuel caused the crash that left the pilot, a patient and two medical attendants dead.
During a pre-flight check, the pilot forgot to refuel and was instead texting, a coworker on a personal matter.