Disney Fairies Wiki

Lord Milori with a Broken Wing.

Under most cases, a Broken Wing is a permanent injury that would prevent any fairy from flying again.  Drastic temperature changes can damage wings - for warm-weather fairies, their wings can freeze and break, and for cold-weather fairies their wings can melt and break.  However, if two Fairy Siblings touch their wings together, the broken wing will mend.It is unknown whether the sparkle can repair other fairies' wings or if it would work if the wing was incomplete, since Tinker Bell's wing only had a tear, whereas Lord Milori's was broken off.[1]