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Product Recall. What? An incorrect combination of flat washer and serrated nut was used in the engine compartment to secure the starter power cable. When? August, 2010 Why?
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Product Recall • What? • An incorrect combination of flat washer and serrated nut was used in the engine compartment to secure the starter power cable. • When? • August, 2010 • Why? • The flat washer prevents the serrated nut from locking against the attaching bracket. Over time, the serrated nut may back off allowing the starter cable to fall and contact the fan hub while in operation. This could result in a direct short and potential vehicle fire http://www-odi.nhtsa.dot.gov/acms/docservlet/Artemis/Public/Recalls/2010/RCLMTY-082010-1234.pdf ETM591 Tie Duan
Management Issues • This problem was initially reported by a Blue Bird customer whose starter cable fell off the mount onto the fan hub. • The report was filed in mid August, immediate actions were taken to investigate and formulate a solution. • Engineering solution is to replace all serrated nuts used in engine and chassis cable mounting with lock nuts with nylon insert. • The recall involves notifying the owners and repair free of charge • The recall process began on September 24, 2010. ETM591 Tie Duan
Impact of Recall • Engineering impact: eliminated serrated nuts applications from all products, replaced with nylon lock nuts • Cost impact: $0.0049 increase per application of nylon lock nut • Sales impact: minimal • Reputation impact: minimal ETM591 Tie Duan
References • http://www.usrecallnews.com/2010/09/nhtsa-10634.html • http://www.arfc.org//rvs/blue_bird/all_american/recalls/000036919000393650000000127/recall.aspx • Safety Defection/Noncompliance Notices Received During August 2010. Item 10V-378. • Lead engineer in investigation and solution of this issue: Tie Duan ETM591 Tie Duan