D.C. School board members scheduled to attend a five-day education conference in San Francisco disputed newspaper reports yesterday that the trip is to be financed through a special U.S. grant intended for textbooks and salaries.

However, school system financial accounts show that the board has been issued more than $5,000 in expense advances for the trip from U.S. impact aid funds, a special federal grant for educational purposes to jurisdictions with a large number of federal employes.

he same accounts estimate the total cost of the trip at about $7,000.

In a press conference yesterday, Board President R. Calvin Lockridge said that the money for the trip was being allocated from "the general school budget," and a Title V federal grant as well as from impact aid funds. He was unable to say how much would come from each source.

The records show that about $1,200 in impact aid money went toward paying registration fees for the conference, and about $4,000 was used to pay for airline tickets.

Lockridge, board vice president Barbara Lett simmons, and members Eugene Kinlow, Nathaniel Bush, Linda Cropp, John E. Warren and Frank Shaffer-Corona are scheduled to attend the conference -- the annual meeting of the National School Boards Association -- at D.C. board expense. Board member Bettie Benjamin said she will attend but at her own expense.

Board members Carol Schwartz, Frank Smith and Alaire B. Rieffel are not attending.