As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW DECLARED AN EMERGENCY DUE TO ECAM HYD GREEN RSVR LOW LEVEL. CREW PERFORMED A MANUAL GEAR EXTENSION. THE TECH SECURED MANUAL EXTENSION HANDLE IAW AMM 32-33-00-860-072A. INSPECTED, FOUND LINE PUNCTURED ABOVE ENGINE NR 1 PYLON REF IPC 29-11-06, FIG 2D ITEM 260. R & R NR 1 ENG GREEN HYD SYS LINE IAW AMM 29-11-49. ACCOMPLISHED ENG IDLE RUN HYD SYS LEAK CHECKS GOOD.