Accidents
ADS-B Issues Didn’t Hamper ATC in DCA Midair Collision
Accident helicopter’s transponder was broadcasting
The former Baltimore-Washington Helicopter Route Chart
The former Baltimore-Washington helicopter route chart, in the pre-accident configuration © NTSB

NTSB investigators asked Army officials detailed questions about ADS-B Out usage by FAA air traffic controllers and the Army helicopters this week during the Board’s fact-finding hearing into the Jan. 29, 2025 midair collision of a U.S. Army Black Hawk helicopter and a PSA Airlines CRJ700. The helicopter flight, designated PAT 25 and operated by the Army’s 12th Battalion, was an annual evaluation for the pilot with the use of night-vision goggles (NVG).

NTSB investigator Van McKenny asked Andy Deforest, U.S. Army commander of the Army Aviation Brigade, about the 12th Battalion’s policy for use of ADS-B Out at the time of the accident.

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