Egyptian Seif al-Din Mohamed Mostafa is accused of using a fake suicide belt to force the Alexandria-to-Cairo flight to divert to Cyprus on Tuesday, and has been remanded into custody in Cyprus.
He said he acted out of desperation to see his ex-wife and children who live in the eastern Mediterranean island.
"Immediately after the hijacking, I asked the security officer to stay at the door of the cockpit and not leave," EgyptAir pilot Amr Al-Gamal told reporters in a meeting organised by Egyptian authorities.
"Our main fear was that the hijacker may enter the cockpit, or that he knew how to fly a plane or use it to explode", said co-pilot Hamad al-Qaddah.
Mostafa released most of the 55 passengers soon after the plane landed in Larnaca, Cyprus. Hours later he surrendered to police.
Cypriot police say Mostafa -- described by officials as "psychologically unstable" -- faces possible charges of hijacking, kidnapping, reckless and threatening behaviour, and breaches of the anti-terror law.
"The captain asked us to take a photo of the hijacker," said stewardess Nayera Atef al-Dabs, whose photograph with Mostafa wearing what appears to be a rudimentary suicide vest strapped to his chest has gone viral on the Internet.
She said she posed for a picture with Mostafa after a British passenger did the same.
"I was crying in the bathroom and I called my sister to tell her to take care of my three-year-old son. I was trying to look calm in front of the passengers," said Dabs, recalling Tuesday's ordeal.
