What was found
PDIS 596 29-02 1798 09SEP26 12:57 PHX FACT LEVEL 1 HYD 2 OFF ALERT ABOUT 1.5 HRS AFTER TAKEOFF. LEVEL 2 HYD 2 FAIL AFTER PARKING BRAKE SET AT THE GATE. EMERGENCY DECLARED. PART 09SEP26 15:03 MC1 IDENTIFIED PARTS HYD LINE ASSEMBLY W/TEE MPN: AYK7551-5679 CPN: 2900083 QTY: 1 PART 09SEP26 15:04 MC1 ORDER PART MPN: AYK7551-5679 CPN: 2900083 QTY: 1 MSN: 2272776 FACT 09SEP26 22:10 PHX AMM: 20-10-01-2-0 OTHER: DOUGLAS DRAWING AYK7551 AMM: 71-00-00-2-2 JRH: 6-2 CANNIBALIZED AYK7551-5679 FROM AIRCRAFT 610, INSTALLED CANNIBALIZED LINE AND PERFORM RYNGLOK REPIAR PER AMM 20-1-01-2-0, PERFORM HYDRAULIC CHECK ADN OPERATED FLIGHT CONTROLS WITH ENGINE POWER, NO LEAKS NOTED ALL SYSTEMS CHECK GOOD. CANNIBALIZED AYK7551-5679 FROM AIRCRAFT 610, INSTALLED CANNIBALIZED LINE AND PERFORM RYNGLOK REPIAR PER AMM 20-1-01-2-0, PERFORM HYDRAULIC CHECK ADN OPERATED FLIGHT CONTROLS WITH ENGINE POWER, NO LEAKS NOTED ALL SYSTEMS CHECK GOOD.