United States 82V131000
Mack Trucks, Inc.
The problem
DUE TO THE HIGH STRAIN WITHIN THE FAN BLADES OF THE COOLING FAN, CRACKS MAY DEVELOP IN THE FAN. THESE CRACKS MAY LEAD TO COMPLETE FRACTURE OF THE COOLING FAN, PROPELLING THE FAN AND PIECES OF THE FAN BLADES OUTSIDE THE FAN SHROUD.
What owners should do
THE DEALER WILL INSTALL COOLING FANS WITH IMPROVED FAN BLADES ON ALL AFFECTED VEHICLES FREE OF CHARGE TO OWNER.
Units 5050