FAA issues emergency directive on 2,000 Boeing 737 NG, Classic planes

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The directive covers planes not operated for seven or more consecutive days.

The FAA issued the directive after inspectors found compromised air check valves when bringing aircraft out of storage. 

If corrosion is found, the valve must be replaced prior to the aircraft’s return to service, the FAA said.

Boeing said on Friday it had advised operators to inspect the planes and added “with airplanes being stored or used infrequently due to lower demand during the COVID-19 pandemic, the valve can be more susceptible to corrosion.”