Figure out why a system rebooted with Powershell

Fairly self explanatory. Finds event ID 1074 details.

Get-WinEvent -FilterHashtable @{logname='System'; id=1074}  | ForEach-Object {
     $rv = New-Object PSObject | Select-Object Date, User, Action, Process, Reason, ReasonCode, Comment
     $rv.Date = $_.TimeCreated
     $rv.User = $_.Properties[6].Value
     $rv.Process = $_.Properties[0].Value
     $rv.Action = $_.Properties[4].Value
     $rv.Reason = $_.Properties[2].Value
     $rv.ReasonCode = $_.Properties[3].Value
     $rv.Comment = $_.Properties[5].Value
     $rv
     } | Select-Object Date, Action, Reason, User