Fluff time: Star Wars, wouldn’t a ship the size of an Imperial starship burn up before crash landing on Jakku?

disclaimer The fluff Q&A will end soon, just hang on.

Mini spoiler alert! If you have not seen the film this will possibly divulge some minor details.

Would Rey living off what she can scavenge from downed imperial vehicles like the huge Imperial Starships have any real possibility? Upon heading for their demise on the sandy mounds of Jakku, would not they have burned up (since we are going on the idea that the characters of Star Wars breath oxygen) by friction caused by the air upon entering the atmosphere? If anything made it to the planet should it have been a burned out hulk of metal or whatever, at best be usable just as scrap metal with no viable components left that could be reused?