DER repairs
When damage falls outside what the published repair data covers, the answer is an engineering approval rather than a replacement part. DER repair is that route.
The problem it solves
A unit is damaged beyond the limits the maintenance manual addresses, but a replacement part number is unavailable or uneconomic. The work needs an engineering approval to proceed.
What the route involves
A repair design is developed and approved through a Designated Engineering Representative, giving the operator a documented basis for the repair rather than a judgement call.
What the operator receives
A repair that is approved through the correct route, with the documentation to support the entry in the technical records.
Discuss a specific case
Describe the unit, the damage or the approval you are seeking. We will tell you which route applies and what is needed before any work starts.