The bottom casing cracking issue that some folks have been experiencing in their 13-inch white MacBooks is real and Apple is willing to replace your MacBook if it happens to you, so sayeth the latest Apple service bulletin.
This is similar to the iPhone cracking syndrome that was eventually accepted as truth but don’t try to take your MacBook back if you dropped it out the window.
Apple added, however, that other portions of the case could be affected by the cracking issue. For all instances, providers were reportedly asked to inspect the MacBook carefully to determine whether the cracks could be the result of the notebook haven been dropped or other accidental damage caused by the owner.
In the event that providers are unable to identify signs that the user is at fault for the cracks, they’re advise to escalate the notebook for coverage by Apple, regardless of whether its 1-year limited warranty has expired.