Dorothy Hoffner is 104 years old. Did that fact keep her from skydiving on Sunday? Not at all.

“Age is just a number,” she told a cheering crowd moments after touching the ground near Chicago, Illinois. Her goal was to beat the record for oldest person ever to skydive.

Rut Linnéa Ingegärd Larsson from Sweden set the current record at the age of 103 in May 2022. But Skydive Chicago is working to have Guinness World Records certify Ms. Hoffner’s jump as a new record.

This isn’t Ms. Hoffner’s first leap into thin air. She first skydived when she was 100. That time, she was too nervous to jump. She needed a helpful push out of the aircraft.

On Sunday, she left her walker behind. She was helped up the steps of a plane to join others waiting to skydive.

“Let’s go, let’s go, Geronimo!” she said after she was finally seated. The plane took off. When the door opened, the divers saw tan fields far below.

Ms. Hoffner shuffled to the edge and leaped into the air—no push required. Tethered to an instructor, she led the jump from 13,500 feet. She tumbled out of the plane head first, completing a perfect forward roll in the sky. Next she flew into a freefall with her belly facing the ground.

The dive lasted seven minutes, including her parachute’s slow descent to the ground. The wind pushed her white hair back. She clung to the harness over her narrow shoulders. Finally, she picked up her legs and plopped softly onto the grassy landing area.

Friends rushed in to share congratulations. Someone brought over Ms. Hoffner’s red walker. She rose quickly.

How did it feel to be back on the ground?

“Wonderful,” she says. “But it was wonderful up there.”

Ms. Hoffner will turn 105 in December. She’s considering a ride in a hot air balloon next.

 Even to your old age I am He, and to gray hairs I will carry you. I have made, and I will bear; I will carry and will save. — Isaiah 46:4

UPDATE: On Monday, October 9, just days after her record-setting dive, Dorothy Hoffner passed away in her sleep.