Story highlights The crash occurred on April 5 during a routine surface attack training mission

Large portions of the aircraft were found intact after the crash

Washington (CNN) Investigators have concluded that a $22 million US Air Force F-16 fighter jet crashed near Joint Base Andrews, Maryland earlier this year because its engine was improperly assembled and was missing key parts, the service announced Thursday.

The crash occurred April 5 during a routine surface attack training mission.

Shortly after departing Joint Base Andrews, the aircraft "experienced an uncommanded engine acceleration, followed by a loss of thrust," forcing the pilot to execute "critical action procedures for low altitude engine failure," according to an Air Force press release.

Photos: April 17, 2017: An An Army UH-60 helicopter from Fort Belvoir, Virginia, crashed at Breton Bay Golf and Country Club in Leonardtown, Maryland. One crew member died. Hide Caption 1 of 16 Photos: April 5, 20917: A US F-16 crashed several miles outside Joint Base Andrews in Maryland. The pilot safely ejected. Hide Caption 2 of 16 Photos: May 18, 2016: An Air Force B-52 crashes on the Pacific in Guam Hide Caption 3 of 16 Photos: June 7, 2016: Two South Carolina Air National Guard collide over Georgia.

November 25, 2015: An Air Force F-16 crashed while on a training mission in New Mexico, but the pilot managed to safely eject from the aircraft. Cost $24,915,222.00

August 2015: Two Air Force F-16Cs accidentally collided on a runway at Nellis Air Force Base, Nevada, which resulted in one of the aircraft being destroyed and nearly $71 million in damages according to the accident report.

December 1, 2014: An F-16CM deployed with the 77th Expeditionary Fighter Squadron crashed supporting Operation Inherent Resolve. The pilot was fatally injured on impact. The aircraft was destroyed with a loss valued at $30,796,852.

November 2014: An F-16C crashed in the Gulf of Mexico. The pilot was killed. Cost $21.9M

October 20, 2014: Two F-16Cs, assigned to the 125th Fighter Squadron, 138th Fighter Wing, Tulsa Air National Guard Base (ANGB), collided during a training mission near Moline, Kansas. One aircraft was destroyed. The total loss to property was $22,490,842.

Hide Caption 4 of 16 Photos: June 2, 2016: A U.S. Air Force Thunderbirds F-16 crashes near the Air Force Academy in Colorado. Hide Caption 5 of 16 Photos: October 2014: An Air Force F-15D of the crashed in a field close to a school near Weston Hills, Lincolnshire, England. The pilot safely ejected. Cost $45.2M

Hide Caption 6 of 16 Photos: October 2015: An Air Force C-130J crashed in Jalalabad, Afghanistan. Cost was $110.6M Hide Caption 7 of 16 Photos: June 2, 2016: Blue Angels Navy F/A-18 crashes during practice for an airshow in Smyrna, Tennessee, killing the pilot. Hide Caption 8 of 16 Photos: April 30, 2015: Fire heavily damaged an RC-135V, cost $62.4M. Hide Caption 9 of 16 Photos: May 26, 2016: Two F/A-18Fs went down in the Atlantic following a mid-air collision. Aircrew ejected safely. No fatalities.

Jan. 12 2016: F/A-18A had an engine fire leading to ejection and crash. Cost was $71M

Oct 21, 2015: F/A-18C crashed on departure from Lakenheath, England. One military fatality. $ 75.2M loss. Hide Caption 10 of 16 Photos: May 29, 2016: An EA-18G had inflight arresting gear engagement leading to nose landing gear damage and engine damage in the South China Sea Hide Caption 11 of 16 Photos: Oct. 18 2015: Electrical arcing at vapor cycle power receptacle led to E-2C fire in a the hangar bay on a carrier in the Western Pacific. Hide Caption 12 of 16 Photos: June 14, 2016: An MH-60S crashed into the water while simulating a swimmer deployment in Newport News, Va. All 3 crewman were rescued by boat. Hide Caption 13 of 16 Photos: Dec. 9 2015: A Marine MV-22B landed short while recovering to a ship. No injuries. $ 2,000,001 in damage. Hide Caption 14 of 16 Photos: Jan. 15, 2016: Two CH-53Es collided over water on night training flight off Oahu, Hawaii. 12 fatalities. $109.6M in losses Hide Caption 15 of 16 Photos: May 6, 2016: A Marine AV-8B crashed into water after a loss of thrust off North Carolina Pilot ejected safely.

March 8, 2016: A Marine AV-8B applying take-off power caught fire on deck of ship in the Persian Gulf. Cost $62.8M Hide Caption 16 of 16

The pilot was able to safely eject and did not sustain any injuries but the aircraft was destroyed as it hit the ground.

Large portions of the aircraft, including a wing and the fuselage, were found intact after the crash, allowing investigators to identify it as an F-16, police said at the time of the incident.

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