As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT RETURNED DUE TO NR 1 HYD & QTY LOW, HYD PRESS ENG 1 & HYD RES PRESS 1 & HYD PRESS DEM 1, GEAR DOOR & GEAR DISAGREE & GEAR MONITOR STATUS MSGS ON TAKEOFF. UPON INVESTIGATION FOUND NR 8 TIRE LOOSED CAPPING WHICH CAUSED DAMAGE TO A NR 1 HYD SYS RETURN LINE LOCATED IN LT & BODY GEAR WW WHICH CAUSED FLUID LOSS OF NR 1 HYD SYS NR 8 & 7 WHEEL ASSEMBLIES & HYDS & LINE WERE REPLACED IAW AMM 32-45-01 & 29-11-00 RESPECTIVELY.