As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BEFORE DEPARTURE, CREW REPORTED ESSENTIAL BUSS-BATTERY CAWS & AURAL WARNING ON START. BATT 1 VOLTS FLUCTUATE BTW 17.5 AND 21.5, BATTERY 2 BTW 18.5 AND 23.5 AMPS ON BOTH -020 -002. CONFIRMED SECURITY OF RELAY K221 WITH NO DISCREPANCY'S. CONFIRMED SECURITY OF GROUNDS AT PG150 AND PG151 WITH NO DISCREPANCY'S. COMPLIED WITH REMOVAL AND INSTALLATION OF BATT 1 CURRENT SENSOR PN 524.52.12.720 IAW AMM 12-A-24-30-08-00A-920A-A.