NTSB Update Cites New Altitude
Information
Latest summation details source of altitude data.
Mark Phelps
Credit:
National Transportation Safety Board
According
to the NTSB statement "the air traffic control tower display at DCA is fed
by the Potomac TRACON. The TRACON fuses information from multiple radar sensors
and ADS-B data, providing the best quality flight track data to air traffic
control.” Additional data points from the Black Hawk’s onboard instrumentation
are needed to verify the altitude information, the NTSB said. Recovering the
Black Hawk wreckage to obtain further data is expected to occur later this
week. Synchronizing available information from the Black Hawk’s flight data
recorder (FDR) and cockpit voice recorder (CVR) is ongoing, as is the effort to
transcribe audio from the cockpit voice recorders from both aircraft.
In
bittersweet news, officials reported this evening that the remains of all 67 on
board both aircraft have been recovered. Earlier today, the CRJ’s right wing,
center fuselage, part of the left wing and left fuselage, significant portions
of the forward cabin and cockpit, vertical stabilizer, tail cone, rudder,
elevators, TCAS computer, and quick access recorder had been recovered and will
be moved to a secure location for examination. The wreckage of both aircraft
was found in roughly 8 feet of water in the center of the Potomac River.
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