My uneducated guess is that crew members in the back galley could have been injured by unsecured items they were loading falling or sliding. The service cart itself is 200-250 lbs. With the rear galley accelerating upward, then a sudden halt to the acceleration when the front nose impacts the ground, I could imagine the cart lifting off the ground and landing on feet or legs. Or putting the cart aside, other items such as drink cans, galley appliances, etc. falling from cabinets or counters could cause injury