{"source":"nhtsa","country":"us","campaign":"93V137000","date":"1993-08-20","owner_notified":"1993-10-01","manufacturer":"MACK TRUCKS, INCORPORATED","component":"ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN","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.","mfr_campaign":null,"part_number":null,"units":11000,"completion":null,"do_not_drive":false,"park_outside":false,"notification":null,"french":null,"vehicles":[{"year":1991,"make":"MACK","model":"CH","vehicle_id":"1991_mack_ch","match":"exact","built_from":"1991-04-01","built_to":"1993-05-01"},{"year":1992,"make":"MACK","model":"CH","vehicle_id":"1992_mack_ch","match":"exact","built_from":"1991-04-01","built_to":"1993-05-01"},{"year":1993,"make":"MACK","model":"CH","vehicle_id":"1993_mack_ch","match":"exact","built_from":"1991-04-01","built_to":"1993-05-01"},{"year":1991,"make":"MACK","model":"FDM","vehicle_id":"1991_mack_fdm","match":"exact","built_from":"1991-04-01","built_to":"1993-05-01"},{"year":1992,"make":"MACK","model":"FDM","vehicle_id":"1992_mack_fdm","match":"exact","built_from":"1991-04-01","built_to":"1993-05-01"},{"year":1993,"make":"MACK","model":"FDM","vehicle_id":"1993_mack_fdm","match":"exact","built_from":"1991-04-01","built_to":"1993-05-01"}],"may_apply":true,"as_of":"2026-10-19","lookup":{"nhtsa":"https://www.nhtsa.gov/recalls","tc":"https://wwwapps.tc.gc.ca/Saf-Sec-Sur/7/VRDB-BDRV/search-recherche/menu.aspx?lang=eng","maker":null},"attribution":[],"url":"https://open.wenmarpro.com/recalls/nhtsa/93V137000"}