What was found
ON FLIGHT 3633 AFTER TAKEOFF THE CREW REPORTED A NUMBER 1 BLEED LEAK AT FLIGHT LEVEL 50 FOR APPROXIMATELY 3 TO 4 MINUTES. THE CAPTAIN DECLARED AN EMERGENCY AND LANDED WITHOUT INCIDENT. THE AIRCRAFT WAS REMOVED FROM SERVICE. PERFORMED PNEUMATIC ENERGY THOUGHT ONE OF THE ENGINES IAW EMB 145 MM 36-00-00-808-801. THE OPERATIONAL CHECK WAS GOOD, NO LEAKS FOUND AT THIS TIME. REMOVED AND REPLACED O-RINGS AND COUPLING NR 23 AND NR 28 IAW AMM 36-11-10. REMOVED AND REPLACED TUBE ASSEMBLY IPC 36-17-00 FIG 20 ITEM 260 IAW EMB WORKCARD 36-11-10. REMOVED AND REPLACED COOPER GASKET ON APU BLEED CHECK VALVE IAW EMB 145 AMM 36-12-02. THE OPERATIONAL CHECK WAS GOOD IAW EMB 145 AMM 36-00-00. THE AIRCRAFT WAS RETURNED TO SERVICE.