As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN CRUISE FLIGHT, APPROXIMATELY FIVE MILES FROM SL23D THE CAUTION PANEL STARTED SMOKING. LANDED ON A DRILLING RIG AT ST96. MAINTENANCE REMOVED CAUTION PANEL (SN 516) AND INSTALLED SERVICEABLE CAUTION PANEL (SN 504). OPS CHECK WAS GOOD. (M)