WASHINGTON, July 17 (Reuters) - The National

Transportation Safety Board said on Wednesday it had scheduled

20 hours of hearings over two days on the January Alaska

Airlines Boeing 737 MAX 9 in-flight door plug emergency.

The NTSB said the Aug. 6-7 hearings are set to last 10 hours

each day and will review Boeing 737 MAX manufacturing and

inspections, FAA oversight of Boeing ( BA ) and Spirit

AeroSystems ( SPR ) and events surrounding the removal of the

door plug in 2023.