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NHTSA Engineering Analysis EA04032

Engineering Analysis · WHEEL SEPARATIONS · Opened 2004-11-23 · Closed 2005-12-30

Investigation

Action number
EA04032
Type
Engineering Analysis
Open date
2004-11-23
Close date
2005-12-30
Manufacturer
Keystone RV Company
Affected makes
KEYSTONE; MONTANA
Affected components
WHEELS; WHEELS:HUB; WHEELS:LUGS/NUTS/BOLTS/STUDS
Affected model years
2003, 2004
Affected (make, year) variants
15

Summary

ON JUNE 20, 2005, KEYSTONE RV NOTIFIED ODI OF KEYSTONE'S INTENTION TO CONDUCT SAFETY CAMPAIGN 05V-309 TO ADDRESS 2,668 VEHICLES CONSISTING OF 1,677 MY 2004 MONTANA, 550 MY 2004 EVEREST, AND 441 MY 2005 EVEREST VEHICLES EQUIPPED WITH ALUMINUM WHEELS.THIS CAMPAIGN PROPOSES TO REMOVE THE WHEELS, INSPECT THE WHEEL ENDS FOR INDICATIONS OF PRIOR LOOSENING AND/OR OTHER DAMAGE, REMOVE PAINT AND OTHER CONTAMINANTS FROM THE WHEEL MOUNTING INTERFACE, AND EDUCATE THE OWNER ABOUT THE IMPORTANCE OF CHECKING THE TORQUE OF THE WHEEL MOUNTING NUTS AS PRESCRIBED IN KEYSTONE'S OWNER'S MANUAL.ON SEPTEMBER 20, 2005 KEYSTONE DISTRIBUTED WHEEL END SERVICING INFORMATION IN DVD FORMAT TO 114,618 OWNERS OF NON-CAMPAIGNED VEHICLES MANUFACTURED BETWEEN MAY 1, 2003 AND SEPT 1, 2005. ALTHOUGH KEYSTONE HAS INDICATED THAT THEY HAVE IMPROVED THE QUALITY AND CONSISTENCY OF THE WHEEL NUT INSTALLATION AND TORQUING, ODI IS CONCERNED THAT THE NEED FOR FREQUENT RETORQUE MAY BE INDICATIVE THAT OTHER CURRENTLY-UNADDRESSED FACTORS MAY BE INVOLVED.ODI WILL CLOSE THIS INVESTIGATION BUT CONTINUE TO CLOSELY MONITOR THE WHEEL SEPARATION ISSUE AT KEYSTONE RV.

Source

Authoritative
NHTSA ODI investigation page
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