Although Morton declined to "comment on share price moves," news of the fall has left many investors feeling nervous.
Less than a week after the $8.54 billion terminal opened its doors to the public, many are questioning its ability to service customers effectively.
British Airways CEO Willie Walsh, who has faced calls for his resignation over the past week's chaos, said in a statement — or what some travelers may perceive as an understatement — that "the service we have provided has not been good enough."
But, he added, "both British Airways and BAA have invested an enormous amount of time and effort to create Terminal Five," and he expressed confidence that "these early difficulties can be overcome."
His words were echoed by a British Airways spokesperson, who told ABC News that Terminal Five "will be a success; it is a fantastic terminal and passengers have commented on how great it is and looks."
The impressive new terminal is the size of about 50 soccer fields, but now, after the recent turmoil, many in the UK are wondering if this much-hyped establishment will prove to be a case of too much show and not enough go.
Emily Wither and Sean Duffy contributed to the reporting of this story.
