Black box of Boeing 737 sliding off runway into St Johns River recovered(1/3)

National Transportation Safety Board (NTSB) investigator Dan Boggs holds the flight data recorder recovered from the Miami Air International Boeing 737-800 that overran the runway at NAS Jacksonville and came to rest in the St Johns River in Jacksonville, Florida, U.S., May 4, 2019. (Photo/Agencies)

Aerial view of the Miami Air International Boeing 737-800 that overran the runway at NAS Jacksonville and came to rest in the St Johns River in Jacksonville, Florida, U.S., May 4, 2019. (Photo/Agencies)

Aerial view of the Miami Air International Boeing 737-800 that overran the runway at NAS Jacksonville and came to rest in the St Johns River in Jacksonville, Florida, U.S., May 4, 2019. (Photo/Agencies)