Commercial Fixed Wing
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Situational Awareness
Deviation / Discrepancy - Procedural Maintenance; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Returned To Gate
Aircraft
The aircraft had several maintenance scheduled items that needed to be addressed before we could fly the aircraft. It was supposed to be the first revenue flight after long term storage. There was one maintenance schedule item X which needed to be accomplished before the aircraft can be used for revenue flight with passengers. The item was signed off on the completed items sheet and the aircraft was released for flight. When we were taxing; Dispatch notified us to hold. We called them and they said there was a maintenance schedule write off not signed off properly. So; we returned to the gate to have to addressed. The reason for this report is that you cannot leave the gate with passengers unless maintenance schedule item X had been signed off. Our paperwork showed it was signed of yet the electronic AML [Aircraft Maintenance Logbook] said it was not.  We returned to gate. We found out later that it was a clerical data entry error made by someone in maintenance and the maintenance schedule item sign off was entered incorrectly.The cause is easy to figure out. The only way to fix it is to have a computerized completed items sheet that only shows items cleared and then the computer copy and paper completed items sheet would always match!After items are cleared in computer; print out new completed items sheet for AML so paper and computer always match.
Air carrier First Officer reported a return to gate after Dispatch told them they had an improperly signed maintenance item.  The aircraft had several maintenance items that needed to be addressed before the flight due to it just coming out of long term storage.