As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WARRANTY SEAL BROKEN UPON RECEIPT. REFERENCE: BEECH 200 MM 27-31-00 PG. 201 STEP F: VOLTAGE TEST FAILURE (10.54VAC), STEP G: 24.5 VDC OK, STEP H: VOLTAGE TEST FAILURE (1.04V), HORN FAILS TO ACTIVATE WITH ANY FORCE. ALL A/C WIRING, GROUNDS ANDTEST EQUIPMENT OK.