_______________________________________________ CLERICAL ERROR CORRECTED; RECONSIDERATION DENIED: October 16, 1997 _______________________________________________ GSBCA 13088-R, 13254-R PRINCIPAL MUTUAL LIFE INSURANCE CO., Appellant, v. GENERAL SERVICES ADMINISTRATION, Respondent. William M. Rosen and Kendrick C. Fong of Dickstein Shapiro Morin & Oshinsky, L.L.P., Washington, DC, counsel for Appellant. Sharon J. Chen and Amy J. Brown, Office of General Counsel, General Services Administration, Washington, DC, counsel for Respondent. Before Board Judges BORWICK, WILLIAMS, and VERGILIO. BORWICK, Board Judge. Respondent seeks reconsideration and clarification of our decision in Principal Mutual Life Insurance Co. v. General Services Administration, GSBCA 13088, et al. (Aug. 7, 1997). We clarify one aspect of the decision, correct a clerical error, and deny reconsideration. Appellant seeks clarification that the rent start date of August 18, 1993, applies only to the fifth, sixth and seventh floors. As indicated in our findings 86, 87, 89, 90, and 93 of that opinion, Principal Mutual, slip op. at 25-27, the dispute as to the rent start date concerns the fifth, sixth and seventh floors. Respondent is correct that, as to the date GSA commenced rental payments for those floors, finding 89 should have referenced December 19, 1993, instead of December 20. In the opinion, we rejected GSA's argument that if there were to be a rent start date earlier than December 19, 1993, that date should have been September 1 and not August 18. Principal Mutual, slip op. at 25 (Finding 87). On reconsideration respondent raises the issue once more. "Arguments already made and reinterpretations of old evidence are not sufficient grounds for granting reconsideration." Board Rule 132. Respondent maintains that in establishing the rent start date of August 18, we should have required appellant to offset its rental by certain avoidable costs. Quantum, however, was not put in issue by the parties. As indicated in our opinion, the issue decided by the contracting officer and appealed to the Board was the date of the start of the rent, not the quantum of rent. Principal Mutual, slip op. at 26 (Finding 93), 31 n.10. The Government did not raise quantum in its pleadings, at the hearing on the merits or in its post-hearing briefs. We will not consider issues raised for the first time in a motion for reconsideration. Hof Construction, Inc., GSBCA 8354-R, 92-1 BCA  24,669. Respondent seeks correction of square footage figures in our finding 90. As is evident from review of the cited exhibit, the square footage in that finding accurately refers to the net usable square feet of the measured space, not, as respondent supposes, to the net usable square feet on the fifth, sixth and seventh floors. Decision For the above reasons, reconsideration is DENIED. __________________________ ANTHONY S. BORWICK Board Judge We concur: ___________________________ ___________________________ MARY ELLEN COSTER WILLIAMS JOSEPH A. VERGILIO Board Judge Board Judge