Chapter 42
Field Change Policy

Purpose

  • Define the company/division policy for affecting products with changes after shipment.

Applicability

  • All products which have been production released by this CM function. Only those changes defined in Std #59 will be retrofit.

Policy/Practice

  • A separate document (Field Change Order – FCO) shall be used to change the shipped units. (See Field Change Order Form Standard for the FCO format.)
  • An FCO will be originated only because the design change order (ECO) so directs.
  • Service and Design Engineering shall agree on the affect on the field (in the ECO) within the limits of these standards.
  • Do not hold up the implementation of the design change order for the FCO writing and processing.
  • Only non-interchangeable changes shall result in an FCO. Not all non-interchangeable changes will become an FCO. Each case will be considered on its own merits.
  • Any significant safety issue will immediately become an FCO. Such changes will also cause an immediate letter to be sent to all customers as well as notification thru the mass media as required.
  • The Field Support/Service function shall write the FCO for significant safety issues. The FCO shall be drafted for approval within 24 hours of the change order passing Design Complete and hand-carried through the process.
  • A kit of parts (BOM) required to install the change in a finished unit shall be referenced in the FCO.
  • A person other than the writer shall install one fix from the FCO and kit in a production unit. That person will mark up the kit and FCO document. The kit list and FCO shall thus be “proofed/corrected” and distributed to the field.
  • The FCO kit should contain a simple form (stamped, self-addressed postcard to CM) for feedback of serial number the field changed (unless you are “online” with the field).
  • Don’t close a design change order that affects the field until the FCO has been completed, modeled and approved by the writer and the “pilot installer.”
  • The FCO document shall be assigned a part number and included in the FCO kit (in order to allow for reorder in case of loss of the original).

Procedure

  • See below for work flow diagram.

Primary Responsibility

  • The director of engineering services shall keep this standard current.

Authorization

Authorization

VP Service

VP Engineering

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