Safety officials urge Boeing to redesign part on 737s

The National Transportation Safety Board urged Boeing on Tuesday to redesign the engine casing on some of its planes after a , a mother of two from New Mexico, died following the 2018 accident after being partially sucked out of the damaged window. The 43-year-old banker was among the 144 passengers and five crewmembers on board Flight 1380 that left New York's LaGuardia Airport for Dallas. Former Navy pilot Tammie Jo Shults, later hailed for her "nerves of steel," was assisted by former Air Force pilot Darren Ellisor in landing the plane after it rolled sharply to the left when the engine exploded 20 minutes into the flight. Eight other passengers suffered minor injuries.

NTSB said the 24 fan blades in the left CFM International CFM56-7B engine on the Southwest flight were manufactured in 2000 and had been used on more than 32,000 flights before the tragic flight in 2018. Fan blade number 13 was already cracked at the time of its last overhaul, according to the NTSB, but wasn't flagged by a visual-inspection method used at the time. At the time, the FAA required inspections using electrical current and ultrasound following a similar incident in 2016 when Southwest Airlines flight 3472 experienced a fan blade failure about 12 minutes into the flight. Debris from the engine damaged the fuselage, causing a drop in cabin pressure on that flight as well. Nobody was injured in the 2016 incident.

CFM said it "will continue to strictly comply with regulatory requirements, including any changes that might be adopted as a result of NTSB's recommendations."

Kris Van Cleave contributed to this report.

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