Denne ulykken har likhetstrekk med KNM Helge Ingstad som hadde sin AIS avslått. (Red.)
Black Hawk ADS-B Was Off Because Mission Profile Was Classified
Lack of an ADS-B signal is among the
factors being considered in the Jan. 29 collision between a Black Hawk
helicopter and a CRJ700 in Washington.
Updated Apr 28, 2025 5:50 AM EDT
Acroterion/Wikimedia/https://creativecommons.org/licenses/by-sa/4.0/deed.en
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The Army Black Hawk helicopter crew involved in
the midair collision with an American Eagle CRJ700 last January at Reagan
National Airport had turned off ADS-B because they were practicing a classified
flight profile, according to a New York Times investigation. The Times story released
Sunday said the crew was rehearsing the extraction of high-level government
officials because of an attack on Washington when it collided with the CRJ. All
67 people on both aircraft died and the aircraft crashed into the Potomac. It
was also a qualification flight for Capt. Rebecca Lobach, who was flying with instructor
CWO2 Andrew Eves.
The lack of an ADS-B signal and the potential
warning it might have provided controllers over the altitude of the helicopter
have become prominent investigative paths for the various authorities involved.
The reason the ADS-B Out transponder was not emitting a signal that night had
not been disclosed by investigators.
The Times story is an
investigative dive into the events leading up to the catastrophe, which was the
first major airliner crash in the U.S. in 16 years. The story, based on tower
tapes and radar track information, chronicles a series of procedural,
airmanship and communications factors that culminated with the collision on the
evening of Jan. 29. The disaster has already resulted in a number of changes at
DCA and some other airports, including the requirement that ADS-B be activated
on all aircraft except for some classified flights. The FAA has also banned
helicopter traffic in the immediate areas of the runways, again, except for
some classified circumstances. The NTSB's final report won't be ready for about
a year.


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