As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REF ASA TC 78273000 ENGINE NUMBER ONE SHOWS SHORT TERM FAULT. 73-11271 ALT INPUT VOLTAGE TO EEC OUT OF RANGE. GROUNDED - YES. PERFORMED B737-900 FIM 73-27 TASK 804. DURING RESISTANCE CHECK ON STEP F(3) TABLE 207, RECEPTACLE CH A PINS 2 THROUGH 6 SHORTING TO CONNECTOR SHELL. REMOVED AND REPLACED #1 EEC STATOR-ALTERNATOR REF B737-900 AMM 73-21-08/401.