A D.C. Superior Court jury yesterday found a Northeast Washington man guilty of raping a 12-year-old school girl on Sept. 22, 1981 after accosting her as she walked between her home and Roper Junior High School.

The jury deliberated four hours before finding Ondrae Lamont Gant, 24, of 224 50th St. NE, guilty of rape and carnal knowledge and enticing a minor child for sexual purposes.

Police arrested Gant six days after the incident when the girl pointed him out in the neighborhood and told her mother, who notified police, authorities said.

During the six-day trial, Gant acknowledged having intercourse with the girl, but said he and the girl knew each other and she had consented to having sex with him.

In her testimony, however, the girl denied knowing Gant or that she had agreed to have relations with him. She testified that she went to school late that day, but found the doors locked and began walking back home. She said she was accosted by Gant, who claimed he was a truant officer, and pushed her into his car.

The prosecutor, Cary M. Feldman, asked that Gant be held without bond pending sentencing. Judge George H. Revercomb ordered Gant jailed and set sentencing for Dec. 6.

Gant faces 15 years to life on the rape and carnal knowledge charges, and up to five years on the enticement charge.