As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING EXTERNAL LOAD OPS, ENGINE RPM WENT TO APPROXIMATELY 60 PERCENT N2. LOAD WAS DROPPED AND RPM CAME BACK TO 95 PERCENT. AIRCRAFT WAS FLOWN APPROXIMATELY 1/4 MILES TO LZ, BUT WOULD NOT HOLD RPM TO HOVER. FOUND FILTER IN FUEL NOZZLE COLLAPSED.