The most important safety feature on any commercial aircraft is two well-trained, well-rested professional pilots.
Two Pilots Are Crucial for Safety
Airliners are designed for more than one pilot on the flight deck because safety and operations require it. Yet some special-interest groups continue to push for reducing the flight crew on large aircraft—possibly down to a single pilot—to cut operational costs.
Pilots on board an aircraft can see, feel, smell, and hear many indications of an impending problem and begin to formulate a course of action before even the most sophisticated sensors and indicators provide positive indications of trouble.
Single-Pilot Operations Jeopardize Safety of Commercial Airliners
Ample evidence—including more than a decade of study by NASA and the FAA—confirms that the safety risks associated with single-pilot operations far outweigh any potential benefits.
80%
of people polled want two pilots working together on the flight deck.
A minimum two-person flight crew is necessary to manage the flight deck workload and protect against the potential incapacitation of one pilot.
ALPA supports innovation and the introduction of new technology on the flight deck to enhance safety and improve pilot situational awareness, but some foreign manufacturers are pushing single-pilot aircraft, including so-called “extended minimum crew operations” (eMCO), for the purpose of removing a pilot from the flight deck. This creates unacceptable risk and is inconsistent with decades of U.S. and international safety regulations.
Same-Day Incidents Prove Two Pilots on the Flight Deck Is Vital
On November 19, 2022, a Delta Air Lines flight suffered a significant bird strike. That same day, an IOE captain at the controls of an Envoy Air flight suffered a medical event and became unresponsive. In both incidents, having two pilots on the flight deck was absolutely crucial to the aircraft’s safe and successful landing during an emergency.
Pilot Staffing Case Studies
January 5, 2024
Alaska Airlines Flight 1282 had just taken off from Portland International Airport when the B-737-9 MAX suffered in-flight blowout of a left mid-exit door plug. This resulted in rapid cabin depressurization, forcing the flight crew to declare an emergency and return to the airport for an immediate landing. The two flightcrew members, four cabin crewmembers, and 171 passengers aboard disembarked safely at the gate.
FedEx Express Flight 1432 was on approach to land at Austin-Bergstrom International Airport with Capt. Hugo Carvajal flying and F/O Robert Bradeen, Jr., monitoring. Bradeen visually identified a Southwest flight approximately 1,000 to 1,500 feet down the runway and quickly called for a go-around to avoid a collision with the other aircraft.
United Airlines Flight 1175 was less than an hour from Honolulu when its right engine failed. Capt. Christopher Behnam, copilot F/O Paul Ayers, and F/O Ed Gagarin, occupying the jumpseat, worked together to assess the situation and maintain control of the aircraft amid deafening noise and significant vibration.
May 21, 2020
Delta Air Lines Flight 3343, a cargo flight from Frankfurt to Chicago, was 6.5 hours into its return trip when F/O Matthew Clark suffered cardiac arrest at 40,000 feet while at the controls of a B-777 and became immediately incapacitated.
Any reduction in proven safety standards for the world’s safest mode of transportation would put the lives of people in the aircraft—and on the ground—at great risk.
Some airline industry groups are pushing to reduce the size of the flight crew on large aircraft to a single pilot, using false claims of a pilot shortage and insisting that advances in avionic technology make a second pilot unnecessary. In some cases, these airlines want to instead place a second pilot in a remote ground location.
U.S. law and FAA rules require at least two qualified pilots in the flight deck at all times during flights of large passenger and transport aircraft, with larger crews mandated for long-haul flights.
At any given time, one pilot (the “pilot flying”) typically is actively flying the aircraft, while the other (the “pilot monitoring”) is responsible for monitoring the instrumentation, checklist management, and communicating with air traffic control. While the modern flight deck features many automated systems, the pilot flying is always actively engaged in flying the aircraft. Automation is a tool at his or her disposal.
In standard two-pilot operations, the tasks are shared, which is especially important during the work-intensive taxi, takeoff, and landing phases of flight.
Two pilots seated side by side in the flight deck are able to closely coordinate their actions via constant communication, including nonverbal cues such as head nods and other gestures that indicate a message has been heard or a task is being performed.
The pilot monitoring also plays an important role in monitoring the pilot flying, watching out for errors or declines in cognitive ability. Should the pilot flying become incapacitated for health reasons during a flight, the pilot monitoring can quickly take control of the aircraft.
Significant advances in automation and other technologies in recent years have led some in the aviation industry to suggest that reduced-crew or single-pilot operations could save money without compromising safety.
In reality, automation, communications, and sensor technologies are decades away from being able to provide the same level of safety as a second pilot in the flight deck. In addition, efforts to implement single-pilot operations would also need to overcome regulatory constraints, cybersecurity concerns, and economic drawbacks.
One concept currently being developed by manufacturers is extended minimum crew operations (eMCO), which would routinely reduce the number of pilots on the flight deck during operations to a single pilot for significant periods of time.
Under eMCO, only one pilot would be required to remain at the controls for extended periods during cruise while a second resting pilot would be located outside the flight deck. Under these circumstances, there would be no pilots at the controls during physiological breaks or if a pilot became incapacitated.
eMCO is currently being considered for implementation in the near and mid-term. The concept has been evaluated by the European Union Aviation Safety Agency, which announced in in June 2025 that it would be suspending further work on new regulations because “an equivalent level of safety between eMCO and the current two-crew operations cannot be sufficiently demonstrated."
eMCO unequivocally introduces significant new risks with unknown consequences, including:
Increased workload for the remaining pilot
Loss of monitoring and cross-checking
Elimination of built-in redundancy
Breakdown of shared responsibilities on the flight deck
Decreased ability to adapt and respond to dynamic situations
The number one priority in commercial aviation is and always will be safety. Any measures or changes designed to improve the efficiency and economy of the current system must be accomplished without compromising safety.
The best guarantor of safety is having at least two fully qualified professional pilots in the flight deck. Investing in reduced-crew operations would displace other potential investments that would benefit all aviation stakeholders—including the airlines and air transport companies—and compromise safety. Even in the modern technological age, there is no safe substitute for having at least two human pilots in the flight deck of large passenger and cargo transport aircraft.
ALPA Advocates for Two-Pilot Crews
FAA rules require at least two pilots to fly large passenger and cargo aircraft flights, and these crucial safety measures should not be changed. Today's pilots earn their stripes through hard work, extensive training, and valuable wisdom gained from hundreds of hours in the flight deck. No computer or remote pilot can match an onboard crew’s training, dedication, and instincts.
Strong safety standards save lives, and passengers will not fly with an airline that has only one pilot on the flight deck, even if airfare prices decrease. With two pilots on board, every flight is in good hands.
Pilots Around the World Agree: "Safety Starts with Two"
Pilots around the globe are unified in the fight against reduced crew operations. We're a cofounder of a global coalition to prevent airlines and manufacturers from pushing ahead with plans to remove pilots from the flight deck. Airline pilots stand firm when we say: “Safety Starts with Two.”
A computer or a remote pilot can't possibly make time-critical decisions in the way that a skilled and experienced crew on board that aircraft can. We preach and practice crew resource management to help prevent such events from happening, and that's the reason that air travel is one of the safest forms of transportation.
Capt. Brandon Hendrickson, Envoy
2022 ALPA Superior Airmanship Award Winner
There is no automated or remotely operated replacement for the collaboration, communication, and airplane feel made possible by having at least two pilots on the flight deck.
Capt. Jason Ambrosi, Delta Air Lines
ALPA President
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