A B767-400 TECHNICIAN RPTS BEING PRESSURED INTO PERFORMING MAINT THAT HE WAS UNTRAINED AND UNQUALIFIED TO PERFORM; RESULTING IN AN ENG SHUTDOWN.

Narrative

DURING AN ETOPS SVC CHK; I WAS PRESSURED INTO PERFORMING MAINT THAT I WAS NOT QUALIFIED TO PERFORM. A QUALIFIED MECH TOLD ME TO DO THE WORK AND HE WOULD SIGN FOR IT. OVERWATER JOB CARD WAS COMPLIED WITH AND THE ACFT DEPARTED ZZZ1 AND DIVERTED INTO ZZZ2 AFTER AN INFLT SHUTDOWN DUE TO LOSS OF OIL PRESSURE ON #2 ENG. AFTER BEING INFORMED THE NEXT DAY OF THE SIT; I FOUND DOCUMENTATION IN TRAINING RECORDS STATING THAT I WAS NOT QUALIFIED TO PERFORM THE MAINT REGARDLESS OF WHO SIGNED FOR THE WORK. I WAS INFORMED THAT THE INFLT SHUTDOWN WAS CAUSED DUE TO AN OIL SUMP LINE NOT SAFETY WIRED. I RECALL DOUBLECHKING THE TORQUE ON THE LINE AND NOT SEEING A PLACE TO SAFETY THE LINE. THE LINE WAS LEAK CHKED TWICE AFTER MAINT WAS COMPLETE. SOME OF THE HUMAN FACTORS INVOLVED ARE DUE TO WORKING LATE AT NIGHT IN THE DARK AND POURING RAIN. OTHER FACTORS INVOLVE OTHER QUALIFIED AMT'S NOT DOING THEIR JOB; FORCING ME TO PICK UP THE SLACK OUT OF FEAR OF BEING REPRIMANDED BY LEAD AMT'S AND SUPVRS. THERE WERE MANY OTHER ETOPS QUALIFIED AMT'S AT WORK THAT NIGHT THAT WERE NOT ASSIGNED TO THAT ACFT THUS FORCING NON-EQUIP-QUALIFIED AMT'S TO DO WORK THEY ARE NOT QUALIFIED FOR.