Mack · Canada · High
Mack RS, RL: Structure
Affects Mack RS, RL · 1979–1980 — about 150 vehicles.
The hazard
THE RIGHT HAND FRAME RAIL LOWER FLANGE WAS CUT OUT OR TRIMMED ON THESE VEHICLES. BECAUSE OF POOR GRINDING METHODS USED TO ELIMINATE ALL STRESS RISING POINTS, THE FRAME COULD DEVELOP CRACKS AND EVENTUALLY FAIL DUE TO FRAME ARTICULATION. THIS COULD RESULT IN LOSS OF CONTROL AND VEHICLE CRASH WITHOUT PRIOR WARNING.
What to do
Contact your dealer; the remedy details were not included in the filing.
Critical — crash/injury risk now
High — injury risk; see remedy
Moderate — fix at next service
Low — minor / informational