Part 3/8:
As American 11 prepared for takeoff, a shift occurred in the tone of communications. The aircraft transitioned from ground control to tower integration, where expectations shifted significantly. Initial normalcy was disrupted when radio communications were interrupted, leading to concerns that escalated rapidly.
The line of communication became strained as ground controllers noted the unusual lack of response from American 11. Soon, it was reported that the transponder signal had been lost, raising alarms about potential hijacking.