What was found
RAT HYDRAULIC PUMP CASE SPLIT WHILE ACCOMPLISHING AN OPERATIONAL TEST. NEED TO CREATE SDR DUE TO RAT PUMP FAILURE REF GMM 04-20-16 WHILE PERFORMING A FUNCTIONAL CK OF THE RAT SYS, PER AMM 29-21- 00-730-801, THERE WAS A CATASTRPHIC FAILURE OF THE HYD PUMP RESULTING IN THE COMPLETE DEPLETION OF THE CTR HYD RESERVOIR. THIS WAS A SCHEDULED GROUND CK OF THE RAT SYS. THE PART # OF THE PUMP IS 973930 & THE S/N MX-591157.