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More cracks in Southwest Airlines planes

INSPECTORS find cracks in three more Southwest Airlines planes after hole ripped in jet's roof, triggering terrifying nosedive.

US federal investigators say inspectors have found subsurface cracks in three more Southwest Airlines planes.

Similar cracks are suspected of triggering a fuselage rupture that forced a Boeing 737-300 to make an emergency landing in Yuma, Arizona.

The 15-year-old jet in the Arizona incident had about 39,000 take-off and landing cycles.

The airline had said earlier today that it found such cracks in two of their planes.

A National Transportation Safety Board member says a third plane was discovered to have the cracks as well.

Board member Robert Sumwalt says Boeing is developing a "service bulletin" strongly suggesting immediate checks on all similar models with comparable flight time and age.

The cracks found in the three planes developed in two lines of riveted joints that run the length of the aircraft.

Original URL: https://www.news.com.au/travel/travel-updates/more-cracks-in-southwest-airlines-planes/news-story/8f371dc04dbf3119582677c05721d488