Passengers on a Flydubai flight experienced a terrifying event while flying from Dubai to Tel Aviv.
while flying= 〜を飛行している間(主語とbe動詞が省略された表現)
Inside the cockpit, a violent fight started between the pilots. The pilot stabbed his co-pilot during the flight. A cockpit is the front room of an airplane where pilots control the flight.
During the fight, the airplane suddenly dropped 17,000 feet. The sudden drop caused great horror for the Israeli passengers on board.
caused great horror for= 〜に大きな恐怖を与えた、強いパニックを引き起こした
The flight changed its path and landed in Saudi Arabia. The plane landed safely despite the emergency.
despite the emergency= 緊急事態(深刻な状況)にもかかわらず