MACK CH 1992: ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN

General Information

NHTSA Campaign ID Number: 93V137000

Make Model Year
MACK CH 1992
Date Owners Notified Date Received by ODI Date Added to Database
1993-10-01 1993-08-20 1993-09-01

Production Dates: 1991-04-01 - 1993-05-01

Manufacturers Involved: Mack Trucks, Inc.

Component: ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN

Potential Number Of Units Affected: 11000

Report Initiator: MFR MFR Report

Summary

THE ENGINE COOLING FAN BLADES MAY BREAK DUE TO INADEQUATE BLADE STRENGTH AROUND THE RIVETS THAT ATTACH THE BLADES TO THE FAN SPIDER.

Consequence

IF COMPLETE FRACTURE OF THE FAN BLADE OCCURS, IT COULDBE PROPELLED OUTSIDE THE FAN SHROUD, INJURING PERSON"S" IN THE VICINITY OFTHE TRUCK.

Remedy

AN IMPROVED FAN WILL BE INSTALLED ON THESE VEHICLES.

Notes

SYSTEM: ENGINE; COOLING FAN.VEHICLE DESCRIPTION: CLASS 8 HEAVY TRUCKS EQUIPPED WITH 6 BLADED FANSMANUFACTURED BY ENGINEERED COOLING SYSTEMS, INC.