Write a warm, engaging news report that examines the FAA advisory about slacklines and how such temporary obstacles can endanger low-flying aircraft, tying it to the recent fatal helicopter crash in Arizona. Ground your piece in the identified victims—David McCarty and his family—from Queen Creek, and explain how investigators and NOTAM notices played into the developing story. Highlight perspectives from aviation experts on pilot planning, safety measures, and potential regulatory or practical steps to prevent similar tragedies.