Brian Alan Tippett, 18, Helena, died Sunday [April 14, 1991].  Graveside service 2 p.m. today, Southern Heritage Cemetery, Ridout's Southern Heritage.  Student Pelham High School, employee Shoney Restaurant, Pelham.  Survivors: parents, Harry and Judene Tippett, sister, Miss Jennifer Tippett, all Helena; grandmother, Mrs. Ethel Tippett, Clanton, grandfather, Curtis Mims, Maplesville.