Not surprising, the crash of P.A.T. 2.5, an army Black Hawk helicopter and American Airlines Flight 5342 near Reagan National Airport on Jan. 29, resulted from multiple factors.

1) Black Hawk crew did not execute visual separation effectively.
2) Black Hawk was flying too high.
3) Just before the collision the Black Hawk pilot failed to heed a directive from her co-pilot to change course.
4) Radio comms between the Black Hawk and Air Traffic Control were compromised.
5) A key position tracking system called ADS-B Out on the Black Hawk was turned off.
6) Air Traffic Control did not issue clear, urgent instructions to the Black Hawk to avert the crash.

Apparently the use of "visual separation" flight rules was a critical issue. https://www.nytimes.com/2025/04/27/business/dc-plane-crash-reagan-airport.html?unlocked_article_code=1.C08.qKvI.6rbL6msqc5S1&smid=url-share&utm_source=newsletter&utm_medium=email&utm_campaign=newsletter_axiosam&stream=top #FAA #NTSB #planecrash #aviation #BlackHawk #ReganNational #flightrules #helicopter