B787 Dreamliner Undifferentiated or Other Model
Maintenance Airframe; Maintenance Powerplant
Troubleshooting
Deviation / Discrepancy - Procedural FAR; Deviation / Discrepancy - Procedural Published Material / Policy
General Maintenance Action
Procedure
[A coworker] and myself had been assigned to work the trip. We had been up to check on the plane and make sure everything was ok.The pilot then notified us of the problem with a slat repair and it had been 'cleared' but was not in the logbook correctly signed off and a placard was still on the dash above a panel notifying them of 'flight plan issues' The pilot was questioning this and wanted to know why the placard was still on the plane and it was signed off in the book? After reviewing the sign off there was not a reference [control] number; nor was entered in [the maintenance tracking system]. There was not a [control] number on the sign off neither. So the book was 'reviewed' with this not cleared.Before being able to clear the work it had to be found and verified being done.While looking for the signed offed work another [entry] was found to not be signed off correctly. So several items had been 'repaired' and either had not been 'cleared'; entered and not found on the review of the book and the pilots were about to just take the placard off the dash based on them calling 'dispatch' which told them to remove the placard.Looking at the logbook there was no way to verify anything was done [due] to the lack of review which then caused a possibility of multiple errors which continued to snowball.This first error was directly above the 'release' of the logbook with item not 'cleared' properly with the [control number] nor removal of the placard.Suggestions: Having a second person review the logbook; to catch errors.The facts that speed is what is important now with getting the planes in the air as fast as possible are showing the mistakes with people rushing and missing paper work which could cause a disaster.
B787 Mechanic reported flight crew identified aircraft repairs incorrectly documented in an aircraft logbook.