What was found
DURING FLIGHT THE NR2 (B) SYSTEM HYDRAULIC LOW PRESSURE LT ILLUMINATED FOLLOWED BY THE B SYSTEM NR 1 LOW PRESSURE LT ILLUMINATING AND LOSS OF B SYSTEM HYDRAULIC PRESSURE , THE B SYSTEM QUANTITY GUAGE INDICATED FULL THE ENTIRE FLIGHT. HYDAULIC BRAKE PRESSURE REMOVED AND REPLACED BOTH NR 1 AND NR 2 B- SYSTEM PUMPS CASE DRAIN AND PRESSURE FILTERS DURING LEAK CHECK FOUND NR 2 B PUMP PRESSURE LINE CRACKED REMOVED. REMOVED AND INSTALLED FLEX LINE IAW MM 29-12-11. LEAK CHECK OK.