The US National Transportation Safety Board disclosed that Boeing was aware as early as 2011 of repeated failures in a bearing assembly securing MD-11 engines to the wing. The part had failed on three separate aircraft during ground runs prior to the November 2024 Louisville crash that killed 15 people. Although Boeing issued a service bulletin recommending redesigned bearings, it did not classify the issue as a safety-of-flight defect, and no mandatory airworthiness directive was issued by the Federal Aviation Administration. Investigators found undetected cracks during post-crash analysis, raising questions about whether the MD-11’s maintenance inspection intervals were adequate to catch such fatigue damage before catastrophic failure.

In the fourth quarter of 2025, Boeing delivered 160 commercial jets—the highest quarterly total since 2018—lifting the full-year tally to 600 aircraft. The bulk of deliveries came from the 737 program, which contributed 117 units in the final quarter. Concurrently, the Defense, Space & Security division supplied 37 military platforms, including Apache attack helicopters, Chinook transports, F-15 fighters and KC-46 refueling tankers, rounding out 131 defense deliveries for the year. Management highlighted that ramped production rates coupled with enhanced quality controls have driven stronger execution and underscored plans to sustain elevated monthly output by further streamlining assembly processes.

Boeing has continued to attract significant commercial orders, notably securing a commitment for 30 787-10 Dreamliners from a leading US carrier alongside a 50-unit order for 737 MAX jets from a major leasing firm. These wins bolster a backlog that now covers nearly all of Boeing’s planned production at current build rates. Analysts point to a robust pipeline of narrowbody orders and improving long-range widebody demand as indicators that market confidence in Boeing’s operational turnaround is strengthening. With management forecasting sustained positive cash flows in 2026, investor interest has increased, reflecting optimism about the company’s ongoing recovery from prior quality and regulatory challenges.