What was found
(CAN) INTERMEDIATE PRESSURE COMPRESSOR ROTOR DRUM P/N UL16758 S/N 36651 EX ESN 30534 & MODULE 02 DM3560 WAS SNAGGED AT INIT INSP DURING OVERHAUL OF THIS MODULE AT RRC DUE TO CRACKING FOUND IN D OVE TAIL OF BLADE SLOTS OF STAGE 6 & STAGE 3. CRACKS CAN BE DETECTED BY VISUAL INSP ALONE. STAGE 6 DOVE TAIL SLOTS FEATURE CRACKS IN PRESSURE FACE TO RUNOUT RADIUS OF DOVE TAIL SLOTS. WORST AFFECTED DOVE TAIL AT NR 7 POS WHICH FEATURES AN OPEN CRACK APROX 0.410 LONG & EXTENDS ONTO FWD FACE. ROTOR WILL BE SENT BACK TO ROLLS ROYCE, DERBY, UK FOR INVESTIGATIO N. NO RPTS FROM OPERATOR OF ANY ABNORMAL MODE OF OP.2000-11-06TC: FOLOW-UP DETAILS REQD