What was found
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: NUMBER 1 ENGINE HYDRAULIC PUMP FAILED, SHUTDOWN NUMBER 1 ENGINE. AIRCRAFT AIR INTERRUPTED BACK TO AND LANDED SAFELY AT ORD. **SUPPLEMENTAL REPORT FOR (AALA202505131932): NUMBER 1 ENGINE PRESSURE LINE QUICK DISCONNECT BROKEN. REMOVED AND REPLACED NUMBER 1 ENGINE HYDRAULIC PUMP PRESSURE LINE (AALA202505131932), PER AMM 29-11-11 AND REMOVED AND REPLACED NUMBER 1 ENGINE HYDRAULIC PUMP (AALA202505157038), PER 29-11-11. ALL OPERTIONAL AND LEAK CHECK GOOD**(CLOSED).