As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REPORT: JANUARY 20TH 2022, ON FLIGHT AV257 CUN-BOG, THE AIRCRAFT N992AV HAD THE NEXT REPORT "DURING CRUISE THE YELLOW HYDRAULIC PUMP PRESENTED FAILURE OF HYD Y RSVR LO LVL", IT DEVIATION TO ADZ ALTERNATE AIRPORT. CORRECTIVE ACTION: IN ACCORDANCE WITH AMM SUBTASK 29-24-21-420-050-A PARAGRAPH B ITEM B (9) AND (10) AND AMM SUBTASK 20-21-12-911-050-A WAS REPLACED HYD TUBE P/N D2917000902000 THERE IS NO HYDRAULIC LEAKAGE, IN ACCORDANCE WITH AMM 29-24-00-863-001-A WAS PRESSURIZED YELLOW HYDRAULIC SYSTEM WITH ELECTRIC PUMP AND IT´S WORKING IN NORMAL CONDITION