While converting the data to ASCII tables, NSSDC recorded the error log below.
                                                                              
  FILE NAME        REC      ERROR                                             
---------------    ---    ---------                                           
ULECA252.TAB        18    DAY = 000                                           
ULECA252.TAB        42    DAY = 000                                           
ULECA252.TAB       197    DAY = 000                                           
ULECA256.TAB        48    DAY = 000                                           
ULECA256.TAB        94    DAY = 000                                           
(Day 254 is September 11, the encounter date.)