Vehicle report
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.
530597
The chassis, floor and front wall may have been inconsistently fastened together. This issue will provide an illusion that the chassis ?A-Frame? may not be structurally sufficient. After review of the chassis with the chassis manufacturer, it has been determined that the chassis design is properly welded in the location(s) required.
53-05122016-0191
THIS TECHNICAL SERVICE BULLETIN SERVES AS A GUIDE TO ENSURE THE FLOOR AND THE FRONT WALL HAVE BEEN MANUFACTURED WITH THE APPROPRIATE MECHANICAL FASTENERS.
Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.