The Boeing 737 is the most widely produced commercial jetliner in history, and its safety record must be viewed across several generations. As of 2026, there have been approximately 525 to 535 hull losses (accidents where the aircraft was damaged beyond repair) since the aircraft first entered service in 1968. Within this total, there have been roughly 220 fatal accidents, resulting in more than 5,600 fatalities. It is crucial to distinguish between the older "Original" and "Classic" series, which had higher incident rates, and the "Next Generation" (737-NG) and "MAX" series. The 737-NG remains one of the safest aircraft ever flown, with a very low accident rate per million departures. The 737 MAX, however, faced a significant crisis following two high-profile crashes in 2018 and 2019 due to the MCAS software system. After a global grounding and extensive recertification process, the MAX has returned to service with enhanced safety protocols. Despite the raw number of incidents, the 737 maintains a safety statistical profile comparable to other major narrow-body jets, largely due to the sheer volume of daily flights—tens of thousands—it performs globally.