Unfortunately we will not see more from the Service Difficulty Reports (reporting) system either.
Unlike American, Delta or Southwest, there are no United SDRs filed since nearly a year before ( July 26,2013).
To View These Records; See FAA’s Service Difficulty Report. Query Link >
http://av-info.faa.gov/sdrx/Query.aspx
Date Field; May 1, 2014 to present (Checked on July 13th).
Carriers Sampled
American (FAA Operator Designator Code - AALA), > 210 records.
Delta (DALA), > 99 records.
Southwest (SWAA), > 175 records.
United (UALA), > No Records After July 26, 2013.