What was found
CLIMBING OUT OF 260 TOWARD 330 RECEIVED A FIRE WARNING FOR NR 2 ENGINE ON ECAM. COMPLIED WITH PHASE 1. STILL HAD RED LIGHT. FIRED 1 BOTTLE (AGENT 1). LIGHT WENT OUT. LANDED WITHOUT MISHAP. MX FOUND HP SENSE LINE HAD BEEN RUBBING ON UPPER LOOP RAIL AND WORN HOLE IN SENSE LINE. SUSPECT THIS TO BE ROOT CAUSE OF FIRE ALERT. REPLACED SENSE LINE IAW STANDARD PRACTICES. FOUND LOWER TURBINE FIRE DETECT ASSY WITH DAMAGE. REPLACED IAW AMM 26-12-12-04-02. OPS CHECKS GOOD IAW AMM 26-12-00-05-02. RAN ENGINE AND CHECKED FOR AIR LEAKS AND CHECKED VALVE CHECK GOOD IAW AMM 36-11-12-05-02 , ACFT OK FOR CONT SERVICE.