MACK MH 1983: STRUCTURE

General Information

NHTSA Campaign ID Number: 86V008000

Make Model Year
MACK MH 1983
Date Owners Notified Date Received by ODI Date Added to Database
1986-08-14 1986-01-17 1986-01-22

Production Dates: 1982-04-01 - 1986-03-01

Manufacturers Involved: Mack Trucks, Inc.

Component: STRUCTURE

Potential Number Of Units Affected: 7000

Report Initiator: MFR MFR Report

Summary

LEFT OR RIGHT CAB STEP MAY CRACK IN ITS WELDED AREA DUE TO FLEXING OF THE STEP DURING ENTERING AND EXITING. CONSEQUENCE OF DEFECT: AS THE CRACKS EXTEND, THE TUBULAR STEP COULD PARTIALLY COLLAPSE AND BREAK WITHOUT WARNING TO THE USER, AND COULD RESULT IN PERSONAL INJURIES.

Remedy

INSTALL A REINFORCEMENT BRACE IF NO CRACKS ARE FOUND. IN ADDITION, REPLACE STEP IF CRACKS ARE PRESENT.

Notes

SYSTEM: CAB STEP. VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS WITH SLEEPER CAB.