What was found
FLT#1926, LGW-BOS. (ETOPS) 'HYDRAULIC FLUID LEAKING FROM RH WING PANEL 674BB. PANELS 674BB AND 674AB WERE REMOVED; FOUND O-RING ON YELLOW ENG DRIVEN PUMP HYD PULSATION DAMPER LEAKING. REPLACED O-RING ON HYD PULSATION DAMPER. OPS & LEAK CHECKS ARE GOOD. NO LEAKS NOTED AT THIS TIME. REF AMM 29-13-53. RT WING PNL INSTALLATION 674BB & 674AB TRANSFERRED TO L/P # 3438424, ITEM 1 (INSTALLED R WING PANELS 674 AB AND 674BB IAW AMM 57-51-37.).' (SUPPLEMENTAL INFORMATION ADDED TO DESCRIPTION)