This quote is also from my addendum (supplement) to my first report:
You may be asking "What is the difference between a ‘critical ground’ and a ‘designated ground’?" Let me fill you in......absolutely nothing! Per (document), section..., a "critical ground" is defined as the same term as a "designated ground", with "designated ground" being the preferred term. See attached Exhibit C for the list of untested and uninspected PSD 747 grounds I printed off the web for you. I have written in the left margin a word for each PSD installed critical ground which indicates if it is on a strut or EBU. Now, you see, I have done all the leg work for you on this item, now all you have to do is write us up! And this problem is much larger than I described thus far. You’ll see on the list that other WIRS notes are involved besides the...(noted) note (..., ..., ..., and other text, such as "BAC5117" and .(XXX) OHM", among others). I have seen a "..." designated ground note on a new 757 DCAC Installation Plan MHIR,... I don’t know if this web list is the official list or not. Maybe there is some other document that lists the same info officially. I could only find this list for the 747 on the web. However, per the D6...document, each design group for each model should have their own list of "critical grounds", or "designated grounds" that are in WIRS. See Exhibit D, for an email that lists who may be the keepers of those other lists. It is a response to my email to the keeper of the 747-400 web list for info on the other models. Write us up, then request those lists and make us comply with the inspection requirements such designated grounds necessitate. Make sure all of these critical grounds are listed on the applicable MHIRs and that the MHIRs find their way out to the production floor to be mated with their particular job. As we’ve ignored and trashed these MHIR inspection documents for untold years, make QA Planning put an inspection on each job with an MHIR, stating to inspect designated grounds on the MHIR per "XXX" note text requirements on the MHIR. Also make us put a QOI in each of our manuals stating how to do these inspections when they appear and letting the inspector know how to stamp the MHIRs off to document their inspections. And then have us issue the service bulletins to have the airlines test these critical grounds, for the first time, to ensure the safety of the fleet.
The Last Inspector