Proceeded with installing the battery ground to the FW. • Located the point to drill for the AN5 bolt used to hold the battery and engine ground wires. • Drilled through the FW at location which is in common with a brace on the aft side. • Connected the battery ground to the FW with AN5 bolt, and the engine ground wire. • Located on the engine sump an appropriate bolt for locating the ground wire, it was pretty simple; there is really only one place that is easily assessable. • Removed the existing sump bolt, attached the ground wire, and re-attached the bolt, torqued to 96 ilb per Lycoming spec.
