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.
SIL-608
ALTEC: AN IMPROVEMENT PRODUCT KIT HAS BEEN DEVELOPED FOR AFFECTED UNITS WITH RELIABLE AND SAFE PRODUCTS FOR LIFTING OPERATIONS BY CERTIFIED AND QUALIFIED CRANE OPERATORS. MODEL AC45-127S. NO MODEL YEARS LISTED. *PE
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.