Human factors

It was perhaps inevitable that the relationship between Boeing and Lion Air would prove fractious. Boeing became the world’s pre-eminent commercial airplane manufacturer in part because it developed a coherent design philosophy that relied on pilots’ airmanship as the last line of defense. It made sense in an era when airplanes were vulnerable to weather and prone to failures and pilots intervened regularly to keep airplanes from crashing. By the 1980s, however, the situation had evolved. It became apparent that because of engineering improvements, very few accidents were caused by airplanes anymore, and almost all resulted from pilot error. This occurred at a time when airlines were being deregulated, discount carriers were springing up, major new markets were beginning to appear in developing countries, pilots’ unions were being busted, pilots’ salaries were in steep decline and airmanship globally was being eroded by an increasing reliance on cockpit automation, production-line training and a rote approach to flying.

In the face of these changes, Boeing clung resolutely to its pilot-centric designs, but in Toulouse, France, the relative newcomers at the European consortium called Airbus were not nearly as shy. Led by an outspoken former military test pilot turned chief engineer named Bernard Ziegler, Airbus decided to take on Boeing by creating a robotic new airplane that would address the accelerating decline in airmanship and require minimal piloting skills largely by using digital flight controls to reduce pilot workload, iron out undesirable handling characteristics and build in pilot-proof protections against errors like aerodynamic stalls, excessive banks and spiral dives. The idea was that it would no longer be necessary to protect the public from airplanes if Airbus could get airplanes to protect themselves from pilots.

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