What was found
CLT - FLT 5234 - ON FLIGHT FROM CLT TO AGS, DURING CLIMB-OUT FROM CLT. THE NR 2 HYD SYSTEM FAILED. AIRCRAFT RETURNED TO CLT. INFLIGHT EMERGENCY WAS DECLARED. EMERGENCY PROCEDURES WERE USED. AIRCRAFT LANDED WITH NO OTHER PROBLEMS. MAINTENANCE FOUND A LOOSE 'B' NUT ON THE NR 2 HYD RETURN LINE AT NR 2 ENGINE FIRE WALL LOOSE. RETORQUED 'B' NUT, RUN, LEAK AND OPS CHECKED GOOD. (M)