The statistics on the first failure created for an asset can be confusing
The value for the TBF on the Failure is determined by the time of the Failure minus the first of the values below that is found:
1. The OriginalInServiceDate of the asset.2. The first StatusChangeDate on an AssetStatusHistory object for the asset.3. The first InstalledOn date for an AssetInstallationHistory object for the asset.