What was found
AIRCRAFT GROUNDED - ABORTED TAKE-OFF AT 76 KIAS - DURING TAKE-OFF ROLL, ECAM MASTER CAUTION "HYD Y RSVR LO LVL" HYDRAULIC YELLOW RESERVOIR LOW QUANTITY. CHECKED YELLOW HYDRAULIC SYSTEM RESERVOIR, NO LEAKS FOUND, SERVICED PER AMM 12-12-29.