As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INVESTIGATED REPORT OF BEING UNABLE TO SILENCE LANDING GEAR WARNING HORN. FOUND LT PWR LEVER 60 PERCENT WARNING SYS, SWITCH S025 TO HAVE HIGH INTERNAL RESISTANCE. REPLACED SWITCH AND ADJUSTED AS REQUIRED, OPS CHECKS OK. TRANSIENT ACFT. RECOMMEND MFR DEVELOP A RECOMMENDED PWR LEVER SWITCHES REPLACEMENT INTERVAL IAW CALENDAR OR FLIGHT HOURS.