by chucks » Tue Dec 02, 2003 12:41 pm
We use a process where a 'red sheet' is created for every potential comeback. That is a vehicle returning for a same or similar customer concern within 90 days or 4,000 miles. The sheets are given to the team managers (aka foremen) and they review the overall picture to determine the root cause of the customer needing to 'comeback'. A summary comeback log sheet is kept for each tech that gives a quick picture of the areas that merit attention. The log is a grid that breaks each valid comeback repair down by skill group involved and by root cause (workmanship, training, wrong procedure, failure to verify repair, etc). This gives us a quick picture of what action is appropriate to IMPROVE the situation. Raw numbers may be impressive and easy to look at, but they provide no information useful in addressing the problem. For example; Ford has had an ongoing vendor problem with DPFE sensors, based on raw numbers our driveability techs would have accumulated a large raw number of 'comebacks' that are actually the result of a condition beyond their control. On the other hand using a column on the log sheet for 'Service Part Failed' will quickly eliminate the misleading comeback numbers from the cases where the technician did have control over the quality of the previous repair.