As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REF TC 78273000 FOUND SHORT TERM FAULT MSG 73-21272, THE ALTERNATOR VOLTAGE INPUT TO THE ELECTRONIC ENGINE CONTROL IS OUT OF RANGE, NR 2 ENGINE. ACFT GROUNDED. FAULT MSG OCCURRED ON FLT 0-10. ACCOMPLISHED FIM 73-27, TASK 804. RESISTANCE CHECKS AT ALTERNATOR & AT ELECTRONIC ENGINE CONTROL CHECKED NORMAL. R & R ELECTRONIC ENGINE CONTRL REF AMM 73-21-60. ALL INSTALLATION TESTS PASSED.