Mack FDM, CH: Engine

Affects Mack FDM, CH · 1991–1993 — about 713 vehicles.

The hazard

FAN BLADE CRACKING COULD LEAD TO COMPLETE FRACTURE OF THE FAN BLADE ALLOWING THE BLADE TO BE PROPELLED OUTSIDE OF THE FAN SHROUD. THIS COULD POSE AN IMMEDIATE DANGER TO PERSONS WHO ARE WORKING ON THE ENGINE OR STANDING ON EITHER SIDE OF THE ENGINE COMPARTMENT. CORRECTION: AN IMPROVED FAN WILL BE INSTALLED ON AFFECTED VEHICLES.

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