It started as a routine morning flight. At 3.05 am UTC (8.35 am IST) Smit Machchhar, the pilot in command of a Boeing 737 MAX 8ed to flydubai departed DXB, Dubai International Airport. The destination was Tel Aviv.

The next three-four hours, though, were anything but routine. The pilot and co-pilot would have a violent (and bloody) fight, the plane would go through a terrifying loss of altitude, and speculation of a hijack would trigger an Israeli military response. Eventually flydubai FZ1073 landed safely in Saudi Arabia’s Tabuk, and the 170-odd passengers were flown home in another plane.

Machchhar and his Omani co-pilot – the man who reports claim was trying to seize control of the plane to crash it – have been hospitalized in Tabuk. And Machchhar has been hailed as a hero. And Israeli leaders have denounced an apparent terror attack, though the airline has (understandably) been more restrained.

What is confirmed At 5.21 UTC the plane lost altitude; Al Jazeera says flydubai FZ1073 fell over 14,000 feet in under 30 seconds while CNN says over 17,400 feet in under two minutes.

Recap Not ‘hijacked’: What happened to Flydubai FZ1073 mid-air Al Jazeera says the plane squawked 7700 – ‘general emergency’ – at 5.31 UTC. Seven minutes later it was squawking 7500 – ‘hijack’.

Squawk 7500 is a red flag What happens when a plane squawks 7500 First, ATCs establish contact. They let the pilot know their distress call has been heard and that help is on the way. Communication is switched to a secure frequency.

Try a code Routine 7700 Squawk 7500 Routine code. No alert is raised. 7700 means general emergency. The crew needs priority handling.

7500 means unlawful interference — the code a pilot can use to flag a hijacking without saying so on the radio. Controllers treat it as a possible hijack. It is a signal, not proof.

What happens next

1. Controllers make contact They see the code and try to reach the crew, typically on a separate frequency, so the pilots know the alert has been received. Next →

2. Airspace is cleared The flight gets priority over all other traffic. Controllers work together to keep other aircraft out of its path, steering it away from populated areas where possible. ← Prev

3. Military aircraft may be sent up Fighters can fly alongside to check the aircraft visually and signal the crew. On 30 September, Israel deployed warplanes as FZ1073 diverted. Some countries' rules allow force as a last resort if a hijacked aircraft heads for a populated area.

4. Landing and lockdown Ground control tries to end it peacefully, often by guiding the plane to a designated airport. After landing, anti-terror forces seal off the aircraft.

↻ Start Over Illustrative only. Procedures differ by country and incident, and this is not a record of what happened on FZ1073. Flightradar24 data shows that flight squawked 7700, then 7500, then 7700 again.

Second, airspace around the hijacked aircraft is isolated, i.e., it gets complete and absolute priority over all other aircraft. This involves multiple ATCs working together to keep other planes out of the flight path and the plane away from populated areas.

And third, military interception. In this case, for example, Israeli fighter jets were reportedly scrambled to fly alongside. Crucially, in a post 9/11-world, most militaries are authorised to use deadly force if a hijacked aircraft ignores comms and/or commands and moves towards a city or populated area.

The flydubai aircraft bound for Israel was diverted to Saudi Arabia following an emergency signal. September 30, 2026. REUTERS/Ammar Awad That said, there is no recorded instance in which lethal force has been employed.

Once phases 1, 2, and 3 are active, ground control tries to negotiate a peaceful end to the situation, which could involve the plane landing at a designated airport, where the plane will isolated. But an unspecified number of minutes later the squawk changed back to 7700. What happened in those minutes? flydubai says there was an altercation in the cockpit.

That lines up with passengers’ accounts and available mobile phone footage – alarm and chaos, and passengers rushing to the cockpit, followed by images of Machchhar lying, bloodied, on the floor.

Must read Flydubai terror: Was Smit Machchhar attacked with a knife or axe? Visuals of another passenger with a wound on his head. Three labels, three different claims A stabbing –This is the best-supported description.

Israeli officials, passengers, and the footage point to this and reporting, including Al Jazeera’s, describes the attack on the captain, Smit Machchhar.

A hijack bid –The 7500 squawk shows that someone signalled ‘unlawful interference’. Was it Machchhar?

Who is Captain Smit Machchhar, the ‘hero’, who saved over 170 lives onboard flydubai? That has not been established yet. But a transponder code is a signal, not a finding.

A terror attack –Israel’s defence minister, Israel Katz, called it an ‘attempted jihadist terrorist attack’, and Prime Minister Benjamin Netanyahu said the pilot tried to crash the plane with everyone aboard. The Israeli leader also said it is too early to comment on Iran links. flydubai has not confirmed this. The airline says motives remain unknown at this time. The cockpit?

One confusing element of the reportage focuses on the cockpit doors – that a passenger kicked the door in and saved the plane. That is unlikely. Modern cockpit doors are built to keep threats in the cabin away from the pilots, and cannot be easily broken down. So any theory that suggests that is suspect, at best.

An Israeli government spokesperson told Reuters the injured pilot Machchhar – lying bloodied on the floor, hit the cockpit door release – and that this was how pax and a crew member entered.

🛑Footage from the Flydubai flight shortly after the sharp drop in altitude, while the passengers were still unaware of the drama unfolding on board.

September 30, 2026 One of the passengers – Yaniv Hayoun, whom Netanyahu later met and called a “lion” – told the Israeli leader he put the co-pilot in a chokehold and dragged him out of the cockpit, and then grabbed the plane’s controls to help bring it back under control Another passenger, a Dr Shota Musaev, a dentist, told CNN he tied the attacker up using headphone cords and plastic zip ties. He then started tending to the wounded pilot. Multiple media outlets have picked up on this event. Relief pilots?

Israeli officials say a second set of pilots were on the flight; that they were scheduled to replace the original crew. After the co-pilot was subdued, they reportedly took control and landed the plane in Tabuk. Now this is consistent with flydubai’s wording about on-duty crew travelling on the flight.

But David Soucie, a CNN aviation safety analyst, told the US news website it is ‘fairly uncommon for additional on-duty pilots to be on flights, unless they are being repositioned for other flights’.

On Thursday it was confirmed the where the airline is based, will lead the probe, ending uncertainty over whether Saudi Arabia (where the plane landed) or Israel (its destination) would take charge. Israel is meanwhile weighing its own response.

What saved the flydubai plane: Smit Machchhar, fliers, luck The transport minister has asked security services to review whether flydubai should be allowed to keep flying to Israel. And a Netanyahu spokesman also told Reuters that Israel will tighten identity and security checks on every pilot flying into the country, including those working for foreign airlines.

For now, the confirmed picture is a violent fight in the cockpit, a steep dive, and a safe landing, with an Indian captain at the centre of the rescue. Why it happened is still an open question, and one the UAE-led probe will now have to answer.