As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING LOW ALTITUDE FLIGHT, PILOT OBSERVED RAD ALT INDICATOR FLUCTUATE, FUEL PUMP CAUTION LIGHT ILLUMINATED, BATTERY VOLTAGE DROP TO 15 VOLTS, RADIOS INOPERATIVE. AMMETER INDICATED NO OUTPUT, HOWEVER GENERATOR FAIL ANNUNCIATOR DID NOT ILLUMINATE. WHEN REMOVED A RATTLING COULD BE HEARD INSIDE THE STARTER GENERATOR. MATERIAL FOUND LYING LOOSE IN COOLING FAN AREA. SHAFT NOT SHEARED AND ABLE TO ROTATE. SUSPECT POSSIBLE ARMATURE FAILURE. AWAITING TEARDOWN REPORT.