Negligence by a jump master caused the broken neck and tragic death of 21-year-old Sgt. Shaina Schmigel back in 2014, when she became entangled in the suspension lines of another paratrooper — according to the United States Army via a recently released Freedom of Information Act (FOIA) request submitted by The Fayetteville Observer.

Investigators discovered that the jump master failed to inspect the static lines of the young paratrooper’s parachute. The guilty party has been removed from duty, however, their name was blacked out and stricken from the Army document.

From the Associated Press:

Schmigel’s static line was loose and it caused her parachute to not open properly when she jumped from a C-17 aircraft, the report said. Schmigel was towed behind the plane and then became entangled in the next jumper’s lines, breaking her neck in three places several seconds later, according to the report.

Other soldiers found Schmigel dead on May 30, 2014, when they all landed in the jump zone. The four soldiers assigned to the plane’s doors were all performing that duty for the first time, according to the Army’s report. It recommended that no more than half the soldiers assigned to safety can be doing that job for the first time.

Schmigel was an intelligence analyst with the 37th Engineer Battalion, 2nd Brigade Combat Team. She had joined the Army in 2010 and was assigned to 2nd Brigade since June 2011.

The 21-year-old was a native of Batavia, New York. Her death has spurred the Army (and the 82nd Airborne Division) to perform an overhaul regarding their safety procedures.