What was found
IN FLIGHT, HYDRAULIC PUMP ENGINE DRIVEN SYSTEM A FAILED. PRESSURE WENT TO ZERO. DIVERTED TO DEN. EMERGENCY DECLARED, AC LANDED SAFELY. FOUND "A" SYS A/P ELEVATOR ACTUATOR LEAK AT SERVO REPLACED "A"SYS A/P ELEVATOR ACTUATORLEAK AND OPS CHECKS GOOD REF AMM 22-11-26. REPLACED #1 ENG EDP CASEDRAIN FILTER. NO CONTAMINATION FOUND. REF AMM 29-11-51. ACCOMPLISHED IDLE POWER RUN #1 ENG REF AMM 71-00-00 EDP OPS AND LEAK CHECK GOOD 300PSI