The Boeing Company

Zwei Lithium-Ionen-Batterievorfälle innerhalb von neun Tagen legten eine Lücke zwischen dem zertifizierten Sicherheitsversprechen der Boeing 787 und dem Verhalten der eingebauten Batterien offen. Der erste verursachte einen Brand in einer geparkten Japan-Airlines-Maschine in Boston; der zweite zwang eine All-Nippon-Airways-787 zur Umleitung und Evakuierung in Takamatsu.

Der Boeing 737 MAX MCAS ist ein Risiko- und Rechenschaftsfall: Zwei tödliche Abstürze, eine globale Stilllegung, öffentliche Untersuchungen und Maßnahmen der Aufsichtsbehörden zeigen, wie sicherheitskritische Automatisierung die Kontrolle zwischen Hersteller, Regulierer, Fluggesellschaft, Pilot und Passagier verschieben kann.

Two lithium-ion battery events in nine days exposed a gap between the safety proposition certified for the Boeing 787 and the behavior of its installed batteries. The first produced fire in a parked Japan Airlines aircraft at Boston; the second forced an All Nippon Airways 787 to divert and evacuate at Takamatsu. Investigators later found that a single-cell internal short could escalate into cell-to-cell thermal runaway, while the initiating defect could remain destroyed or unresolved. The fleet returned through a three-layer redesign that reduced initiation risk, impeded propagation, and contained and vented a failure outside the aircraft. That was an effective operational recovery, but it

Boeing 737 MAX MCAS is a risk and accountability case because two fatal crashes, a global grounding, public investigations, criminal-resolution records, regulator return-to-service actions, and continuing safety-governance scrutiny showed how safety-critical automation can shift practical control among manufacturer, regulator, airline, pilot, and passenger. The public record matters because certification evidence is not merely paperwork; it is the proof that design assumptions, human factors, training, delegation, and repair decisions protect people who cannot inspect the automation carrying them.

The opening in the side of Alaska Airlines flight 1282 was the visible failure. The harder accountability question lay behind it: how a safety-critical configuration could be changed on a factory floor without a durable record, restored without the required inspection, accepted behind finished cabin walls, and delivered into passenger service.