As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EXTENSIVE FRETTING DAMAGE ON PRIMARY JET PUMP FITTINGS AND ATTACHING LINE FITTINGS WHERE WIGGINS CLAMP W991-18DE ARE INSTALLED. DAMAGE OCCURRS TO ADJACENT PLUMBING PN 6926100-123, 6926100-13, 6926100-15, AND 6926100-76. DAMAGE HAS BEEN FOUND TO THESE MODELS DURING TANK INSPECTION 28-10-00-201 CONDITION FOUND IS DANGEROUS AND UNAIRWORTHY.