I learned to fly in 150s,,, there are a lot of variables that could factor into the crash. Yes, engine problems, too much loaded weight, if there was a tail wind, how strong? My condolences to the pilot’s family. Too many possible reasons to assume why. Most crashes are simply a fluke considering how rare they are. 150’s are a simple and great aircraft to fly. There had to have been one or more unusual factors that caused the crash.