What was found
EXTENSIVE FRETTING DAMAGE ON PRIMARY JET PUMPS WHERE CLAMP W991-18DE ATTACHES TO. DAMAGE ALSO OCCURS TO ADJACENT PLUMBING. DAMAGE IS NOT SEEN UNLESS CLAMPS ARE REMOVED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
EXTENSIVE FRETTING DAMAGE ON PRIMARY JET PUMPS WHERE CLAMP W991-18DE ATTACHES TO. DAMAGE ALSO OCCURS TO ADJACENT PLUMBING. DAMAGE IS NOT SEEN UNLESS CLAMPS ARE REMOVED.