JERUSALEM, Israel: The attack on the pilot of a flydubai flight carrying 182 people from Dubai to Tel Aviv by the copilot has raised questions about aviation security and how crew members are screened before operating flights to Israel.

The incident has raised questions about aviation security and how crew members are screened before operating flights to Israel. The aircraft was traveling from the United Arab Emirates to Israel when the alleged attack caused it to suddenly lose altitude.

Passengers intervened after the attack, allowing the injured captain to regain control. Other crew members then helped operate the Boeing 737, which landed safely in Saudi Arabia.

The flight was carrying 174 passengers and eight crew members. Saudi, Emirati and Israeli authorities are investigating the incident, with assistance from the United States and Oman as they try to establish what happened and determine a possible motive.

Israel has some of the strictest aviation security procedures in the world, but its system focuses particularly on Israeli airlines and flights leaving Ben-Gurion International Airport.

Security procedures for Israel-bound flights operated by foreign airlines at airports outside the country can vary. This makes them harder for Israeli authorities to supervise directly.

Eyal Hulata, Israel's former national security adviser, said the incident could lead to greater attention to airline crews during security checks.

"Until this event, the possibility of a threat originating from a pilot or crew member was not considered a likely scenario. Security efforts have traditionally focused much more heavily on passengers and their luggage," Hulata said.

Philip Baum, a visiting professor of aviation security at Coventry University in Britain, said Dubai International Airport had built its reputation around strong security standards. He said the airport understood the importance of preventing attacks involving flights leaving the UAE.

Investigators have not said what object was allegedly used to stab the captain. They have also not established whether it was brought onto the aircraft or was already inside.

Dave Komendat, a senior security adviser at International SOS and a former Boeing security chief, said crew members would generally be expected to undergo security checks similar to those faced by passengers, although procedures differ between countries.

The incident has also raised questions about the copilot's identity. Israeli authorities have identified him as an Omani citizen.

How did Omani Copilot Fly to Israel?

Oman does not have formal diplomatic relations with Israel, raising questions about how an Omani pilot could fly into Tel Aviv.

Israeli Prime Minister Benjamin Netanyahu said Israel had agreements with foreign airlines concerning pilots from countries that do not have diplomatic relations with Israel.

"Obviously, there was a loophole here. And we're taking care of that," Netanyahu said during an interview with Fox News.

The International Civil Aviation Organization sets basic standards for pilot licensing and background checks. Individual countries and airlines can introduce additional security requirements.

Aviation security expert Menachem Bachrach said Israel generally depends on foreign governments and airlines to check their own crew members. He suggested the incident could have resulted from a failure to follow existing procedures rather than from a weakness in the rules themselves.

Netanyahu said the injured captain helped prevent a potentially worse outcome by resisting the attack and opening the cockpit door. Passengers were then able to enter and restrain the suspect, while other flydubai crew members took control of the aircraft.

Cockpit doors on commercial aircraft were strengthened and designed to remain locked after the September 11, 2001 attacks to prevent passengers or other intruders from entering the flight deck.

The flydubai incident has renewed debate about the security risks posed by people inside the cockpit. Aviation experts have also raised concerns that pilots could deliberately cause crashes.

Baum said reinforced cockpit doors can protect crews from outside threats but can also make it difficult for others to reach a crew member who becomes dangerous inside the flight deck.