Swapping B and 8 in both cases, which is typically something that happens with OCR. Weird.

pretty weird...

  NATIONAL TRANSPORTATION SAFEN'BOAFID
  :J11...:i= of ArutiOn SMel@LA5 301
  A.,r Tral1C.IYU';UQlt-Ort!!
  NTS,B ri@ss @at.Joo JurtJer
  DCA26 22\C2<

These all seem like OCR errors...? Why would there be OCR in this workflow? Did they print this out and then generate a PDF from a scan instead of the original source? To maintain an air gap maybe?

it would seem so. so the question is why they would maintain an air gap for a safety report

It's a good policy. Document formats like to include lots of random junk, better to be safe.

Also it prevents redactions from being disclosed.

Reminds me of xerox scanner fun, maybe someone scanned it to pdf to publicise?

Nontheless the pdfs have been replaced and the newer ones don't seem contain these errors anymore.

With many eyes, all typos are embarrassing.

The new document is an image.