A harrowing incident involving a pilot who stabbed his colleague during a FlyDubai flight is reviving a decades-old debate over whether commercial aircraft should be equipped with video recording equipment.

In situations where cockpit altercations or pilot actions are part of an accident investigation, cockpit video would provide the clearest picture of what happened. Commercial aircraft are required to be equipped with audio and data recording devices that capture pilots’ voices and the movement of nearly all switches and controls, but there is no similar mandate for image recorders.

During the FlyDubai incident, the Boeing Co. 737, which was travelling from Dubai to Tel Aviv, plummeted more than 14 000 feet in less than 30 seconds and only avoided catastrophe because passengers and members of the crew stormed the cockpit to stop the attacker and stabilise the aircraft, according to Israeli Prime Minister Benjamin Netanyahu.

Images of these events would likely have been invaluable to investigators trying to work out how the incident unfolded. Indeed, investigative bodies, like the US National Transportation Safety Board, have pushed for mandates requiring commercial aircraft to be equipped with cockpit video recorders as a backstop to other devices, despite pushback from pilots’ unions that have raised concerns about privacy and potential misuse of that data.

Last year, the debate resurfaced after the crash of an Air India Boeing 787 Dreamliner that killed 260 people and injured dozens of others. According to the accident preliminary report, the engine fuel control switches were moved from the “run” to “cut-off” positions before the aircraft struck the ground and one of the pilots asked the other why he moved them, though the latter denied doing so.

Bloomberg reported in January that crash investigators in India were increasingly homing in on deliberate pilot action as the probable cause of the crash, which many safety experts have long suspected. But video recorders could have offered a clearer picture of what happened.

An Egypt Air crash in 1999 was one of the accidents that prompted the NTSB’s pursuit of a cockpit image recorder mandate. Flight 990 crashed into the Atlantic Ocean off the coast of Massachusetts after the aircraft entered an abrupt nosedive, killing all 217 people on board.

The airplane’s voice and data recorders showed autopilot was disconnected, thrust levers moved to idle and the fuel switches for both engines moved to the “cut off” position after the first officer began repeating an Arabic phrase that translates to “I rely on God.”

Despite the potential value of cockpit video recorders, pilots’ unions and some industry experts remain concerned about the risks, including the potential for misuse.

Earlier this year, artificial intelligence was used to reconstruct cockpit audio based on a spectrogram analysis released by the NTSB as a part of its investigation into the November 2025 crash of a United Parcel Service MD-11 in Louisville, Kentucky. The agency temporarily closed public access to its investigative docket system to remove the files.

“The NTSB does not release cockpit audio recordings,” the agency said in a statement at the time. “Federal law prohibits such public release due to the highly sensitive nature of verbal communications inside the cockpit. The NTSB takes these privacy restrictions seriously.”

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