Hi! All the Cove

I wonder what is potential field failures? And how to gather the information relevant to this? Can anybody give me some better understanding.

Thanks in advance.

Hi! All the Cove

I wonder what is potential field failures? And how to gather the information relevant to this? Can anybody give me some better understanding.

Thanks in advance.

The best way to identify potential field failures would be through a Design FMEA and a Process FMEA.

While this does not hold true 100%, a Process FMEA will tend to identify potential failure modes that would be seen internally, at the customer's build line and early field failures because these are manufacturing caused failures. A Design FMEA will tend to identify potential failure modes that would occur later in the life cycle of the product, such as reliability failures because they are design failures. Again, this is not a 100% guarantee because design failures can ocur immediately and manufacturing failures can occur over time (such as a fatigue failure caused by a tooling mark), but it tends to work out that way.

Hi! All the Cove

I wonder what is potential field failures? And how to gather the information relevant to this? Can anybody give me some better understanding.

Thanks in advance.

This generally applies to warranty failures and returns, which is data the OE's supply to certain suppliers in oreder to get chargebacks. It could also be applied to service calls, and repairs your service personnel perform in the field (if you do that sort of thing).

An excellent example would be the Ford/Firestone Tire issue that led to the massive recall. That data came to light because an insurance company analyze the filed failure data. Firestone should have done that too.

Thanks for the replied.

Do we need to invite customer to sit for the establishing of the PFMEA and DFMEA because they will know better how the product they may use it?

Thanks.

Thanks for the replied.

Do we need to invite customer to sit for the establishing of the PFMEA and DFMEA because they will know better how the product they may use it?

Thanks.


That question should be directed to your customer. You are permitted to invite them, but not required to.