What was found
BLADE RETENTION NUT TO HUB LOCK PLUG HOLE DRILLED TO IMPROPER DEPTH. HUB RETIRED FROM SERVICE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
BLADE RETENTION NUT TO HUB LOCK PLUG HOLE DRILLED TO IMPROPER DEPTH. HUB RETIRED FROM SERVICE.