As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SYSTEM "A" HYD QTY DEPLETED IN FLIGHT. WE LOST HYD "A" DUE TO LEAK IAW CREW REVIEW ENGINE AND AMP; ELECTRIC LOW PRESSURE LIGHTS NEVER ILLUMIMATED. FOUND RESERVIOR QTY AT 34 PERCENT, PERFORMED VISUAL INSP FOUND "A" SYS PRESSURE MODULE LEAKING AT 90 DEG ELBOW AND TRANSDUCER PACKING CUT. REMOVED AND REPLACED IAW 29-11-71, LEAK AND AMP; OPS CHECK GOOD.