NHTSA Campaign Id 88V178000; Date: Nov. 14, 1988
Fan failure could result in parts being propelled outsideof the fan shroud, which could injure the person standing near the enginecompartment.
1987 Mack CM400; 1988 Mack CM400
Component: Engine And Engine Cooling:cooling System:fan
Manufactured by: Mack Trucks, Incorporated
Affected Units:: 400
Engine cooling fan is subject to high stress and potential fatigue problems.
Replace fan with an alternate fan.
System: engine cooling fan. Vehicle description: heavy duty trucks.
Date Owners notified by Manufacturer: Nov 10, 1988
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