Colonel Heyl received his commission in December 1991 through the Naval Reserve Officers Training Corps at the University of Kansas, where he earned a Bachelor of Science in Civil Engineering. After completing The Basic School, he reported for flight training, was promoted to First Lieutenant, and designated a Naval Aviator in February 1994 at Naval Air Station Whiting Field, Florida.
From March 1994 until June 1999, First Lieutenant Heyl served with HMLA-169, HMT-303, and HMLA-267 at Marine Corps Air Station Camp Pendleton, California, where he flew the AH-1W. His assignments included Ground Safety Officer, Legal Officer, Airframes Division Officer, AH-1W Flight Officer, Assistant Operations Officer, and Logistics Officer. During this time, he was promoted to Captain and deployed overseas three times.
From July 1999 to July 2002, Captain Heyl served with Marine Aviation Training Support Group Pensacola, where he was assigned to VT-6 at Naval Air Station Whiting Field. He instructed in the T-34C and served as Ground Safety Officer, Flight Scheduler, Flight Leader, Senior Watch Officer, and Current Operations Officer. He was promoted to Major during this assignment.
In August 2002, Major Heyl accepted a commission in the Active Reserve and reported to Marine Aircraft Group 42, Detachment C at Naval Air Station Joint Reserve Base New Orleans. His assignments included Director of Safety and Standardization, Operations Officer, and Executive Officer. He also served as Assistant Maintenance Officer and Operations Officer of HMLA-773(-) during unit activation in support of Combined Joint Task Force 76 in Afghanistan, multiple Mojave Viper exercises aboard Marine Corps Air Ground Combat Center 29 Palms, and in support of Special Purpose Marine Air Ground Task Force Katrina in New Orleans.
In August 2006, Major Heyl reported to Headquarters 4th Marine Aircraft Wing, where he served as Aviation Safety Officer and Director of Safety and Standardization. He was promoted to Lieutenant Colonel during this assignment.
In January 2010, Lieutenant Colonel Heyl reported to Headquarters Marine Forces Reserve for assignment as the G-3/5 Operations and Plans Officer.
In June 2011, he reported to VMR Andrews for assignment as Commanding Officer.
In July 2013, he reported to Marine Forces Reserve for assignment as the G-3/5 Training and Readiness Officer. He was promoted to Colonel during this assignment and in June 2014 was reassigned as the G-3/5 Operations and Plans Officer.
In December 2014, he reported to Headquarters 4th Marine Aircraft Wing for his most recent assignment as the Assistant Chief of Staff G-3.
Colonel Heyl’s education includes a Master of Business Administration from Touro University International, Air War College Distance Learning Program, Marine Corps Command and Staff College Distance Education Program, National Defense University Reserve Components National Security Course, Aviation Safety Officer Course, Crew Resource Management Instructor Course, Military Justice Legal Officer Course, and Ground Safety Officer Course.
His personal decorations include the Distinguished Flying Cross, Meritorious Service Medal (2nd Award), Air Medal (2nd Award) and Strike/Flight Air Medal with numeral 4, Navy and Marine Corps Commendation Medal (2nd Award), Navy and Marine Corps Achievement Medal, and Combat Action Ribbon.
Colonel Heyl has flown over 4900 hours in military aircraft.