What was found
(IFSD) ON TAKEOFF, HEARD A LOUD BANG ON THE RIGHT SIDE. RH ENG N1 ROLLED BACK. CONDUCTED RIGHT ENGINE VISUAL INSPECTION AND SEVERE DAMAGE FOUND. SHUTDOWN RIGHT ENGINE AT 0120Z(<P>MX IN WORK WHILE IN AOGM FOR #2 ENG FAILURE. REMOVED AND REPLACED RH ENG IAW EA 7771A087 AND JOB CARD C-72-999-12-01. THEN TEST #8 REPLACEMENT ENGINE (PRETESTED ENGINE), TEST OK IAW AMM 71-00-00 / 501. FOUND DENT AT RH ENG OIL TANK BREATHER TUBE. R/R RH ENG OIL TANK BREATHER TUBE IAW IPC 79-21-51-33C ITEM 45. IDLE LEAK CHECK GOOD IAW AMM 71-00-00/501. FOUND ELEC CONNECTOR PIN LOCK CONDITION N/G/ AT RH PYLON. REPAIRED PIN LOCK THEN ENG RUN CHECK GOOD, BACK UP GEN OPS CHECK OK IAW AMM 24-25-01.