Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
010G
Service Campaign
THANK YOU FOR CHOOSING WILSON TRAILER COMPANY AS YOUR HOPPER TRAILER SUPPLIER. WE APPRECIATE YOUR BUSINESS. AN ASSEMBLY ERROR WAS MADE ON TRAILER SERIAL NUMBER(S) ON THIS INDICATED LETTER. WE WOULD LIKE TO CORRECT THE ERROR AT NO CHARGE TO YOU. THIS IS AN IMPORTANT UPDATE. PLEASE CONTACT ONE OF THE ENCLOSED SERVICE FACILITIES TO SCHEDULE AN APPOINTMENT.
144H CUSTOMER
Service Bulletin/Repair Instructions
A POTENTIAL ISSUE EXISTS WITH THE MANUAL SWITCHES ON THE SIDE RAIL DUE TO WATER AND DIRT INTRUSION INTO THE SWITCHES, ALONG WITH COLD TEMPERATURES, THAT MAY CAUSE THE TRAP DOOR TO MALFUNCTION.
144H DEALER
Service Bulletin/Repair Instructions
A POTENTIAL ISSUE EXISTS WITH THE MANUAL SWITCHES ON THE SIDE RAIL DUE TO WATER AND DIRT INTRUSION INTO THE SWITCHES, ALONG WITH COLD TEMPERATURES, THAT MAY CAUSE THE TRAP DOOR TO MALFUNCTION.