Philip C. Luttenberger, 51, manager of aerospace field operations with General Electric Co. in Washington, died Jan. 21 in a hospital in Pacific Grove, Calif., after a heart attack. He was on a business trip at the time.

Mr. Luttenberger was a native of Brooklyn, N.Y., and lived in Potomac. He earned a bachelor's degree in electrical engineering at Manhattan College in 1952, and joined General Electric in Lynn, Mass., later that year.

He moved to Washington in 1956 as a GE field sales engineer. He worked for GE in Santa Barbara, Calif., from 1967 to 1975, before returning to Washington in 1975. He was named manager of the aerospace field operations in 1978.

Mr. Luttenberger was a member of the American Institute of Aeronautics and Astronautics, the Congressional Country Club, the Georgetown Club, and St. Bartholomew's Catholic Church in Bethesda. He was a past officer of the National Alliance of Businessmen and the United Way.

Survivors include his wife, Gloria, of Potomac; two sons, Peter, of Santa Barbara, and Mark, of San Francisco; two daughters, Susan, of Potomac, and Jane, of Los Angeles; his mother, Kathryn Luttenberger of Floral Park, N.Y., and a brother, the Rev. Gerard Luttenberger of Northampton, Pa.