After he completed the Division Officer course at the Surface Warfare Officers School (SWOS), he reported aboard USS HAYLER (DD 997) as First Lieutenant. Following a Mediterranean deployment in support of Operation Enduring Freedom he completed the Surface Rescue Swimmer course. Commander Erdner was then assigned to Engineering Department. After completing Counter-Narcotics operations he decommissioned USS HAYLER in August 2003 as the Main Propulsion Assistant. He then reported to USS MITSCHER (DDG 57) as Fire Control Officer where he completed a DPMA and her 2004 INSURV.
Following his division officer tours, Commander Erdner attended the Naval Postgraduate School in Monterey, CA, where he earned a Masters degree in Space Systems Operations. Following his graduation with Distinction, he attended Department Head School at SWOS completing the Prospective Engineering Officer track.
Commander Erdner reported to MCM Crew BULWARK as the Engineer Officer in October 2008.
While embarked in USS CHAMPION (MCM 4), he executed her homeport shift to San Diego, CA from Ingleside, TX. From July 2009 through March 2010, he embarked USS GLADIATOR (MCM 11) for their FIFTH Fleet deployment.
After he completed the Prospective Commander Officer pipeline, he joined MCM Crew DOMINANT as the Executive Officer in the fall of 2010. The crew completed CHAMPION’s 2011 INSURV and after five months of their 2011 deployment, he assumed command of MCM Crew DOMINANT and USS SCOUT (MCM 8). Following re-deployment, he assumed command of USS CHAMPION in December 2011, and then USS CHIEF (MCM 14) in February, 2012. The crew recertified in all warfare areas and deployed to the FIFTH Fleet AOR where he assumed command of USS GLADIATOR. After 8 months of operations, a SRA and the first SEAFOX install on a MCM, he assumed command of USS WARRIOR (MCM 10) in January 2013.
Following early command, he transferred to SWOS in April 2013 and was an instructor for the Senior Officer Ship Material Readiness, Prospective Commanding Officer, Carrier Executive Officer and Major Commanding Officer courses until March 2015. He completed a Joint Service tour at the Missile Defense Agency as the Executive Officer to the Director for Test. Commander Erdner is currently the Executive Officer onboard USS MASON (DDG 87) stationed in Norfolk, VA.
His personal decorations include the Defense Meritorious Service Medal, Meritorious Service Medal, Navy Commendation Medal, Navy Achievement Medal, Naval Post Graduate School Space Systems Academic Excellence Award, various unit and campaign ribbons.