Safety review reveals operational risks of reduced-crew operations in commercial aviation, suggesting autonomous systems must first support two-pilot crews.
This article examines the safety implications of single-pilot and reduced-crew commercial flight operations as artificial intelligence and advanced automation increasingly assume functions traditionally performed by flight-deck crewmembers. Particular attention is given to abnormal and emergency situations, pilot incapacitation, workload spikes, automation failure, cybersecurity, human–machine teaming, and the loss of independent human cross-checking. The study traces the evolution of reduced-crew concepts and evaluates contemporary research involving Airbus, civil aviation regulators, military autonomy programs, and DARPA initiatives. It also considers certification, legal liability, operational authority, and public acceptance associated with replacing the second pilot with an autonomous system. The article concludes that autonomous technology should first be extensively demonstrated as a safety partner within conventional two-pilot operations and that removal of the second pilot should occur only when empirical evidence demonstrates equivalent or superior resilience during compound failures, incapacitation, cyber events, and unforeseen emergencies.
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A. F. Clark (2026) studied this question.
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