TheTimeMachineMechanic 1.19 for Mac could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. We recommend checking the downloaded files with any free antivirus. The program is included in System Tools. The actual developer of this free software for Mac is The Eclectic Light Company.
From the developer:
The Time Machine Mechanic (T2M2) is a quick but thorough check of Time Machine backing up. T2M2 analyses your logs to discover whether Time Machine backups have been running normally, reporting any worrying signs or errors. You do not need to be able to read or understand logs to be able to check for problems now.
You may want to check out more Mac applications, such as Retrospect Client, NTI Shadow or AppleXsoft File Recovery for Mac, which might be similar to TheTimeMachineMechanic.