new concern about security at airports. You'll remember this image, a young boy wobbly as he exits the wheel well of a plane after stowing away, somehow surviving the five-hour flight at 38,000 feet.... See More
new concern about security at airports. You'll remember this image, a young boy wobbly as he exits the wheel well of a plane after stowing away, somehow surviving the five-hour flight at 38,000 feet. He got onto that plane in San Jose, California. Tonight word that at that same airport, a new security breach. A woman boarding a plane without a ticket. Jim Avila tonight getting answers. Reporter: This sweet looking old lady, a tsa official says he just "Wants to hug" and buy a plane ticket, prosecutors describe her as "Severely mentally ill." Still, she managed to embarrass the tsa twice this year by sneaking past a document checker, this time at San Jose international airport, and making her way on board a southwest airlines plane to Los Angeles all without a boarding pass. I don't know how she could do that. Unless she pretended she was a five-year-old. Reporter: Here's how airport officials say she did it. Hartman tried to get past three separate document checkers, finally succeeding by slipping behind a stanchion when the tsa employee was busy checking a family's multiple boarding passes. She went through the full body scanner and then waited in the terminal for three hours before going to the southwest gate where she allegedly used the same technique of sneaking behind a family boarding the plane. Finally discovered in Los Angeles when flight attendants noticed their passenger count didn't match the manifest. I want to make it very clear that public safety was not compromised in this situation. Reporter: It's the same airport that suffered that very different security breach -- the boy who climbed the perimeter fence and stowed away in the wheel well to Hawaii. The tsa says this type of breach is rare. In March, Hartman bent beneath a tsa rope line and boarded a plane for Hawaii. When police asked her why, she said, I had nowhere else to go.
This transcript has been automatically generated and may not be 100% accurate.