As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REMOVED TUBE ASSEMBLY TO FACILITATE OTHER MAINTENANCE. FOUND DOUBLE FLARE TOO LARGE FOR B-NUT TO SLIDE OVER FLARE. B-NUT WOULD THREAD ON FLARE AND TIGHTEN LEADING INSTALLER TO BELIEVE FLARE WAS TIGHT AGAINST FITTING WHEN IT WAS NOT. THIS PART WAS INSTALLED AT THE MANUFACTURER WHEN THE AIRCRAFT WAS BUILT.