In light of the investigative reports Reporting determining Deciding that `` reliable acoustic data do not support Supporting a conclusion Coming_to_believe that there was a second gunman '' , the U.S. Justice Department concluded Coming_to_believe active investigations Criminal_investigation and stated `` that no persuasive evidence can be identified Check to support Supporting the theory of a conspiracy Committing_crime in ... the assassination Killing of President Kennedy '' .

in september 2014 , `` the washington post '' published Publishing an investigative report detailing errors that the secret service Rite made Manufacturing on the night of the shooting Killing that led to Causation the crime Committing_crime going undiscovered .

According to the report published Publishing by the Indian investigative team , the probable cause was ruled Legal_rulings as the pilots selecting Choosing the `` Open descent/flight idle ” control mode rather than glideslope capture , allowing Preventing_or_letting the aircraft to sink Motion_directional far below the correct flight path .

After the crash , the Indian investigation committee issued Statement 62 recommendations to the Indian DGCA ( Director General of Civil Aviation ) , including a time recording on the ATC tapes and the formation of several investigative committees specializing in several aviation operational issues .

According Reporting to eyewitnesses from the local populace and investigative reports Reporting the aircraft was shot down Use_firearm by a surface-to-air missile ( SAM ) .

Alter featured popular news Statement anchor Nikos Hadjinikolaou , morning show host Giorgos Aftias & controversial but popular investigative Scrutiny reporter Makis Triantafyllopoulos .

In response Response to lack of confidence in accident investigations Scrutiny by the CASB , the Government of Canada shut down Being_in_operation that board in 1990 , replacing Change_of_leadership it with an independent , multi-modal investigative agency – the Transportation Safety Board of Canada .

The Central Bureau of Investigation , the main Indian investigative agency , believes Know that the violence Violence was organised Arranging with support Supporting from the Delhi police and some central-government officials .

the u.s. house investigation , conducted in part by the government accountability office ( gao ) , found Know that the military investigative and judicial systems had operated Being_in_operation mostly as designed Creating , but also noted Telling that the dod had refused Agree_or_refuse_to_act access to key witnesses .

Causes Causation proposed Statement in several investigative reports Reporting include possible impact Influence with birds , a missile or target drone , or mechanical and structural failures .