0.97. Located, fitted and match drilled and installed new Doubler P/N 1159SB21515-11, and new Doubler P/N 11595B21515.I3. All maintenance performed IAW Gulfstream Doubler Installation , APU Enclosure Rework Drawing No. I I59SB21515. Removed existing APU ECU PIN 2118478-1, SN 63. Located, fitted and match drilled and installed new