What was found
PDIS 772 29-02 5906 28JUL22 RME OPEN U DURING THE CLIMB HAD A LOSS OF THE ENTIRE LEFT HYDRAULIC SYSTEM. FIRST INDICATION WAS A L HYD QTY CAS MESSAGE. THE LEFT HYDRAULIC RESERVOIR WAS RAPIDLY DEPLETING. WE THEN GOT A MOMENTARY L HYD ENGINE PUMP FOLLOWED BY A LHYD SYS PRESS MESSAGES. ALSO GOT A POWER XFER UNIT STATUS MESSAGE. RAN ALL CHECKLIST AND HAD TO DO AN ALTERNATE FLAP AND GEAR EXTENSION. THE ALTERNATE FLAP EXTENSION WOULD NOT LOWER THE FLAPS AND WE DID A NO FLAP/ SLAT LANDING. PART 28JUL22 10:08 MC1 U HYD ELEMENT MPN: 60B00211-3 CPN: 2911124 QTY: 1 PART 28JUL22 10:09 MC1 U IDENTIFIED PARTS FILTER MPN: 7515128 CPN: 2911001 QTY: 1 PART 28JUL22 10:10 MC1 U IDENTIFIED PARTS ELEMENT MPN: 7585381 CPN: 2912539 QTY: 1 PART 28JUL22 10:11 MC1 U IDENTIFIED PARTS SEE KIT CPN 2913461 MPN: K2912539K2 CPN: 2913409 QTY: 1 PART 28JUL22 10:13 MC1 U IDENTIFIED PARTS FILTER KIT MPN: 654T0035-5 CPN: 0133659 QTY: 1 PART 28JUL22 11:19 MC1 U IDENTIFIED PARTS (W/KIT) PUMP ASSY-HYD AC MPN: 731966 CPN: 2912446 QTY: 1 PART 28JUL22 11:35 MC1 U SHGN 29JUL22 01:42 RME U FOUND 0.05 IN THE LH HYD SYS AS WELL AS BROKEN LINE. INSTALLED FLEX LINE PER AMM20-10-10-8. THEN SERVICED RH AND LH HYD SYS INTO LIMITS PER AMM 12-12-01. RAN LH ENG TO VERIFY NO HYD LEAKS PER JRH CHAPTER 05 AND 06. LEAK CHECKS GOOD.