occasionally 4663 is logging before 4656

while deleting a file, sometimes 4663 and 4660 is logging before its corresponding 4656(based on process id,handle id). This happens occasionally and the order of these events is also not constant all the time i.e, one time the order of events was 4660,4663,4656 another time the order was like 4663,4656,4660. 

this issue was not only specific to deletion. for general read,write operation itself sometimes 4663 is logging before its corresponding 4656.

OS: 2k8 service pack 2.