Narrative:

In january 2009; reinstalling exhaust plug on #2 engine (after removal by third shift) per aircraft maintenance manual 72-51-01; using torque values in aircraft maintenance manual reference 70-51-00; the exhaust plug did not tighten completely after torquing exhaust plug bolts. The tip of the exhaust plug had a slight movement when hitting the exhaust plug with my hand side-to-side and top-to-bottom; approximately 1/8 inch or less. I was not too concerned; because the plug bolts were torqued; and the movement was not that great. I felt the plug would not separate from the engine. The thought of the plug being 'loose' stayed in my mind and my concern grew. Upon arriving at work jan/09; I reported this to my maintenance foreman. Took the pertinent information and said he would talk to maintenance control. The aircraft was on the gate and was to depart approximately XA00. I went to the aircraft and checked the exhaust plug and no change was noted. The aircraft ron ZZZ jan/09 night and will have further evaluation. I wanted to self disclose to possibly prevent an event from occurring. Not taking the time to troubleshoot the cause.

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Original NASA ASRS Text

Title: After reinstalling #2 engine exhaust plug and torquing the attach bolts; Mechanic notices the exhaust plug still had a slight movement when pushed side to side and up or down on a B757-200. Aircraft was released for service.

Narrative: In January 2009; reinstalling exhaust plug on #2 engine (after removal by third shift) per Aircraft Maintenance Manual 72-51-01; using torque values in Aircraft Maintenance Manual reference 70-51-00; the exhaust plug did not tighten completely after torquing exhaust plug bolts. The tip of the exhaust plug had a slight movement when hitting the exhaust plug with my hand side-to-side and top-to-bottom; approximately 1/8 inch or less. I was not too concerned; because the plug bolts were torqued; and the movement was not that great. I felt the plug would not separate from the engine. The thought of the plug being 'loose' stayed in my mind and my concern grew. Upon arriving at work Jan/09; I reported this to my Maintenance Foreman. Took the pertinent information and said he would talk to Maintenance Control. The aircraft was on the gate and was to depart approximately XA00. I went to the aircraft and checked the exhaust plug and no change was noted. The aircraft RON ZZZ Jan/09 night and will have further evaluation. I wanted to self disclose to possibly prevent an event from occurring. Not taking the time to troubleshoot the cause.

Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.