Commercial Fixed Wing
Dispatch Dispatcher
Troubleshooting; Workload; Communication Breakdown
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural MEL / CDL
General None Reported / Taken
Staffing; Human Factors
The Dispatch Release included MEL 21-51-01 which requires the performance data to include 1 pack clsd bleeds inop in the TLR data.  This data was not indicated on the Dispatch Release and was not detected by myself nor the Captain.    The Event was detected upon a routine review of the releases during my shift.  The Control Center has been understaffed due to sick calls and lack of dispatch staff.  In recent days I have managed as many as 78 releases during a normal shift; with as many as 16 releases in an hour being not uncommon.  In addition; the Captain shares responsibility for the safe and efficient conduct of the flight.   In this event there was no communication between the Captain who could have drawn the Dispatcher's attention to this data omission.  In addition to the Dispatcher there are two people in the cockpit who presumably would have viewed the Release and noticed this missing information.  I believe that we could hire more dispatch staff to prevent excessive workload on those in the Control Center.  We also should stress the importance of adhering to Dispatch and flight deck procedures ensuring that all required data are included in the flight release.
Dispatcher reported a failure to place a MEL item on the flight release and neither the crew or dispatch corrected the error.