As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSTALLED OVERHAULED ALTERNATOR AND NEW VOLT REGULATOR AT 769 TTSN. AT 833 HRS REGULATOR FAILED. INSTALLED THE OLD ORIGINAL REGULATOR AND SYSTEM FUNCTIONS PROPERLY. SUBMITTER SUGGESTS RECALL ALL PFT, INC. REGULATORS IN SAME BATCH FOR CONFORMITY INSPECTION AND TEST.