The FAA has ordered inspections of the type of jet engines that failed on deadly Southwest flight

Business Insider | 4/17/2018 | Benjamin Zhang
jenn1020 (Posted by) Level 3
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The Federal Aviation Administration has ordered airlines to inspect certain older CFM56-7B turbofan engines.

A CFM56-7B failed on Southwest Airlines Flight 1380 on Tuesday, forcing the flight to make an emergency landing.

FAA - Inspections - Days

The FAA is requiring inspections to be completed within the next 20 days.

The Federal Aviation Administration issued an emergency airworthiness directive (EAD) on Friday that requires airlines inspect the fan blades on certain older CFM56-7B engines.

EAD - Fan - Blade - Southwest - Airlines

The EAD comes after a fan blade on a Southwest Airlines Boeing 737-700 snapped off mid-flight, spraying shrapnel that punctured the aircraft's fuselage causing depressurization. The incident claimed the life of passenger Jennifer Riordan, the first fatality on board a US commercial airliner since 2009.

National Transportation Safety Board investigators found signs of cracking and metal fatigue at the point where the blade broke.

Result - FAA - Airlines - Detection - Devices

As a result, FAA is ordering airlines use ultrasonic detection devices to inspect all 24 fan blades on older CFM56-7B engines for cracks. The order applies only to engines with more than 30,000 cycles which equates to roughly 20 years of...
(Excerpt) Read more at: Business Insider
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