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   From: muratlanne@gmail.com   
      
   "Leroy N. Soetoro"  wrote in message   
   news:lnsB27783EB04B816F089P2473@0.0.0.1...   
   ...   
   Darin   
   12 hours ago   
      
   I've flown for a U.S. major since 2000 and have an alternate theory.   
      
   I've heard AA5342 was given a runway change to "three-three". I'm going to   
   guess it was initially RWY 01 the crew had dialed in an approach for. If   
   that were the case and the helicopter crew had been monitoring   
   approach/tower and NOT heard the reassignment for whatever reason, the   
   pilots would not have expected the jet to be on a short final to 33.   
      
   I'll go one step further and suggest that if the AA crew had punched in   
   the RNAV approach to 01 and then been assigned 33 they might not have been   
   aware of their proximity to the helicopter.   
      
   It's just a hunch but I think that changed the runway assignment may have   
   been a factor.   
      
   --------------------   
   https://www.fly.faa.gov/Information/east/zdc/dca/00443AD.PDF   
   Runway numbers are approach compass headings rounded to 10 degree steps.   
      
   https://www.reuters.com/graphics/USA-CRASH/WASHINGTONDC-AIRCRAFT/dwvkkwyzxvm/   
      
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