What was found
OXY LOW PRESS MESSAGE ON TAKE OFF FROM THE BEFORE START CHECK TO TAKE OFF 260LBS OF CREW O2 WAS LOST APPROXIMATELY 10 LBS PER MINUTE. LEAK SUSPECTED. / T/S FOUND CREW OXYGEN SYS CAPILLARY LINE BROKEN, REMOVED AND REPLACED CREW OXYGEN CAPILLARY-LINE IAW AMM 35-13-01-000/400-803-A02, SERVICED CREW OXYGEN SYS IAW AMM 12-16-35-614-801-A01. PRESSURIZE, LEAK CHECK CREW OXYGEN SYS IAW AMM 35-10-00-862-802-A01, AMM 35-10-00-790-801-A01. NO LEAKS. OPS CHECK OK.