This quote is also from my addendum (supplement) to my first report. (Continued from previous day's quote. These quotes should explain more why I dubbed myself "The Last Inspector".):
This just in (this is being added on 4/21/02 between the above and below paragraphs): While I had been recently substituting for (name) on 777 EBUs (Engine Build Ups) while he was on a work related trip, I wrote an NCR, (number), on the POS (position) 2 L/N (number) (part number) EBU on insufficient clearance of .XXX" between the (part number) tube and a (part number) vendor bolt (which should have been .XX" minimum clearance) C/T the core diffuser/combustor case.
This clearance problem should have been obvious to any inspector’s "calibrated eyeballs." I actually tried my old clearance check with a bolt to confirm the "calibrated eyeball" discrepancy, as we had no tools to check .XXX" tubing gaps with.
I found out that this method was unwise on EBUs. The first time I got the bolt into the cramped position to check the clearance, I dropped it, and it lodged somewhere in the EBU just below the discrepancy. Thankfully it only took a few seconds to find it and retrieve it from on top of the left gearbox attachment fitting. The second time I tried to use it I also dropped it, but thankfully it dropped all the way to the floor. There are some areas on the core where such a bolt could lodge that would be very difficult to find and/or retrieve. What is needed is an appropriate "Z" shaped ST tool that I could keep a grip on as I used it in tight places.
Anyway, this discrepancy, in my opinion, probably has existed on all (vendor) 777 EBUs that take the noted tube assy. I believe I noted that delivered units were suspected to be affected on the NCR. Make sure we address them and put out a SB (service bulletin) if necessary to check the clearance.
I also wrote an NCR, (number), on insufficient clearance between a tube assy C/T the (part number) drain plumbing installation C/T the VSCF and a vendor hose.
This clearance problem should have been obvious to any inspector’s "calibrated eyeballs."
This discrepancy, in my opinion, probably has existed on most, if not all, delivered units.
I spoke to (name) about it, as her side did not have enough clearance and she had already bought the job. I suggested she open the job up and have the mechanic see if they could get more clearance, as her side was not as bad as mine and perhaps could be made per drawing. I don’t know if she ever did that, however.
The Last Inspector