The attack on FlyDubai flight FZ1073 has shocked the aviation world. Here is what we know so far about the incident and the investigation.

What happened: on September 30, flight FZ1073 was travelling from Dubai to Tel Aviv when the co-pilot allegedly stabbed Captain Smit Machchhar. The Boeing 737 descended rapidly, losing over 17,000 feet in under 30 seconds, according to media reports. The wounded captain opened the cockpit door, letting crew and passengers restrain the attacker. The plane landed safely in Tabuk, Saudi Arabia.

Who was involved: Captain Smit Machchhar, a 39-year-old Indian from Mumbai with about 9,750 flight hours, is recovering in an Abu Dhabi hospital. The suspect is an Omani national, named in UAE media as 29-year-old Hamam al-Hammami, who had reportedly been flagged over extremist views while training at Oman Air.

The investigation: the UAE attorney-general said inquiries are ongoing into motives and any links. FlyDubai has suspended Tel Aviv flights until further notice.

What next: aviation authorities are reviewing pilot vetting and cockpit security rules.

Why it matters: all 182 people on board survived, and the crew’s actions are being credited with averting disaster.