it seems as per your snapshot root cause started on 07.01.14.
1. MP have counter overflow reading is 99999.
2. after 2936 hrs, user have entered 2934 hrs on 07.01.14 (MD-1148).
3. because 2934 is less than 2936, system understands that counter display can be 2934 only in case if it is overflowed its limit (99999) & reached to 2934 after restart.
4. if u see in difference it may be 99997 hrs (2936-->99999-->2934) i.e total cntr reading--102933.
please check & reverse these meas. docs. if not reqd.