Several eye witness reports from passengers onboard the aircraft suggest that they could hear louder than normal engine noise on the approach and a higher deck angle sensation than they are used to; so why are people coming to the conclusion the aircraft suffered a double engine failure. The short video of the a/c's approach confirms it was at an unusually high angle of attack, the approach path flown is consistent with the escape manoeuvre to be executed when encountering windshear. Based upon the facts, the two most likely scenarios which caused the a/c to land short are microburst or wake vortices encounter.