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Day 2 of NTSB hearing on UPS plane crash
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11,773 观看121:21WHAS11News原视频发布: 2026-05-21

The NTSB investigation into the UPS MD-11 crash revealed that Boeing had applied to increase flight cycle intervals between airworthiness inspections approximately 10 years ago, and this approval was granted without submission of in-service experience data such as documented structural failures like aft lug cracking, which could have prompted the FAA to issue an airworthiness directive to reduce inspection thresholds rather than escalate them.

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