Technician reported confusion and disagreement with a task assigned to him during pass down from the previous shift.
Synopsis
Technician reported confusion and disagreement with a task assigned to him during pass down from the previous shift.
Narrative
Last night I received a turn over from Day Shift that they were unable to connect the LR06 Tube at the Exhaust Case because the B-Nut would not turn. I discussed it with the other technicians and they thought it might have been installed incorrectly. So I spoke with Lead NAME and asked him to please come to [Location] when he was able. Before he returned I was speaking to a review team rep who was providing me with some additional training regarding Engines and MX (maintenance) App. When I finished and returned to the Engine I was able to show Lead NAME the issue and what had been turned over to me. He agreed to write a non-routine before I started working on the correction he outlined. I went to a computer with a printer and was searching MX App for the appropriate reference and the printer would not work. I tried to restart the computer and it still would not print. So I returned to my toolbox and found the non-routine and the job card I was working. I took them with me to another computer with a printer and found 3 different Manual sections that might be applicable and 3 IPC that might be helpful. I printed them all and returned to my toolbox to read them. I wanted to make sure I understood the components I was going to be working on and if it might effect anything beyond just those components. Another technician had told me to be careful on internal parts earlier that day. When I returned to my toolbox Lead NAME came over and said it was taking too long. When I explained I was new and was pulling references so I could understand - that I had not even known Bearing No. 4 was part of LPT (Low Pressure Turbine) (I think that is correct - I would have to look it up again to be 100% sure) - that I wanted to make sure what I did; did not affect any other components. He told me I should be asking questions of the other technicians. He had told me earlier to have one technician show me how to remove the straps on the heat shield; but he has his own assignment and was being chastised for taking too long during the shift and instructed to hit it hard. So Lead NAME helped me and removed the straps; he removed the heat shield; loosened the clamp at the bracket and the B-Nut and instructed me to hold the tube down at the exhaust case to reposition it. He then retightened the clamp and it allowed enough room for the B-Nut to turn so tube LR06 could be attached and safetied. He reminded me to torque and safety the B-Nut before I reattached the heat shield and then he went and returned with 4 straps for me for the heat shield. I then sat down at my tool box and read the references I had found until I found the correct one for this tube. The torque listed was 320-350 in-lbs and Lead NAME had written 225-250 in-lbs on the non-routine. So I torqued to 320-350 in-lbs and safetied with stainless steel 0.32 safety wire as the reference indicated. I saw that the reference mentioned a tool for the straps and asked Lead NAME if we had the tool. He said no just use needle nose pliers and diagonal cutters. So I installed the 4 straps and I noticed that the other straps looked like they had been pressed down so the internal tab was not visible. I then asked another technician if I needed to squeeze the straps and he came over to look. He asked if I had installed the others I said no; but that the tab looked squished so I thought I might need to squeeze it. He said no and started to explain how he does it - then he showed me his technique. It was great! It allowed the strap to be tightened at the end to ensure it would stay secure. After completing all of these steps I wrote a narrative on the non-routine and took it and the reference to Lead NAME to show him what I had done and that the torque I found was different than the one he had written. He said something to the effect of So What - he did not care that the torque value was different. He did come to look at the work accomplished and stamped the non-routine. A little while later I realized I needed to mark the non-routine to show that I had completed my statement - so I returned to Lead NAME and asked him if he still had the non-routine. He said he had put it over there - for inspection. I said ok - over here and started walking towards where he pointed. He said something about over there on the desk. I still was not sure but kept looking. Lead NAME realized I had no idea where anything was supposed to be and came and showed me that all of the completed work - job cards and non-routines are placed in the inbox for the analyst on day shift to process. So now I know something new.
Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.