Commercial Fixed Wing
Dispatch Dispatcher
Workload; Time Pressure; Physiological - Other; Distraction
Deviation / Discrepancy - Procedural FAR; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter Fuel Issue
General None Reported / Taken
Human Factors; Environment - Non Weather Related; Staffing
On my turnover to the next shift I realized I had not applied an over-burn to the flight plan. I ran the numbers; contacted the crew and sent them the information as they were already airborne. I told my relief what I was doing.Busy shift; during the shift we got the second notification in less than a week we were moving from our primary location to our contingency for COVID cleaning. This caused an interruption in flight planning...as I've got immune compromised relatives that I cannot see again until this is resolved. Plus maintenance over flight restrictions on flights...and late inbound flights that require monitoring as soon as they are airborne to fly fast since they were not planned that way by the day shift.  Also; multiple center closures were being announced during the shift...trying to determine of my flights were going to be affected was a concern. I had the over-burn highlighted with a pink marker on my worksheet...I just got busy and failed to look at it again while trying to determine if we would be landing to the north or south. Sent the crew updated numbers with the burn applied and advised what happened.
Dispatcher reported incorrect fuel burn numbers were given to a flight crew and cited workload; COVID related cleaning interruptions and ATC closures as contributing factors.