Array
(
    [0] => Array
        (
            [Property] => Brock
            [Meint. Type] => grounds
            [Maint. Task] => plow snow
            [Status] => cancelled
            [Started] =>
            [Completed] =>
            [Comments] =>
        )

    [1] => Array
        (
            [Property] => Brock
            [Meint. Type] => grounds
            [Maint. Task] => plow snow
            [Status] => pending
            [Started] => 2010-01-16
            [Completed] =>
            [Comments] =>
        )

    [2] => Array
        (
            [Property] => Brock
            [Mains. Type] => grounds
            [Maint. Task] => plow snow
            [Status] => complete
            [Started] => 2010-01-16
            [Completed] => 2010-01-16
            [Comments] =>
        )

    [3] => Array
        (
            [Property] => Brock
            [Mains. Type] => grounds
            [Maint. Task] => plow snow
            [Status] => in progress
            [Started] => 2014-01-16
            [Completed] => 2014-01-16
            [Comments] =>
        )

    [4] => Array

$modified_array = array_map('array_values', $arr);