DER Insights
Plain-English, engineering-grade explainers on FAA DER repairs — what they are, how they’re approved, what can and can’t be repaired, and where the value comes from. Read them in order, Part 1 through Part 10.
What Is a DER Repair? A Plain-English Primer
If you manage a fleet or run a component shop, you have probably seen “DER repair” on a quote or a work order and wondered exactly what you were buying…
Read more →DER Repair vs. PMA: When Each Route Makes Sense
When a component is expensive, hard to source, or both, buyers often reach for whichever aftermarket route they know best — and treat PMA and DER repair as competing answers…
Read more →How a DER Repair Gets Approved: FAA Form 8110-3 and the Data Package
When someone says a repair is “DER approved,” it is worth knowing exactly what was approved, by whom, and what that approval does and does not cover. The short answer…
Read more →The Economics of DER Repairs: Where the Value Comes From
When a high-value component comes off an aircraft with damage or wear that a standard maintenance manual will not cover, the reflex is to reach for a new part. Often…
Read more →DER Repair Paperwork: 8110-3, 8130-3, and the Records That Travel With a Repair
A DER repair is only as good as the paper that proves it. The engineering can be sound and the workmanship exact, but the person signing a repaired component into…
Read more →What Can and Can’t Be DER-Repaired: Major Repairs, Limits, and Life-Limited Parts
A DER repair is a powerful aftermarket tool, but it is not a way to save every part. Operators and shops sometimes assume that if a component can be re-engineered,…
Read more →DER Repairs for Engine Parts: Restoring Life Under Part 33 Standards
Engine hardware is where a repair decision carries the most weight. A turbine blade, a nozzle vane, a combustor case, a compressor disk — these parts run hot, spin fast,…
Read more →DER Repairs for Structures and Airframe Components
Most airframe repairs start and end inside the Structural Repair Manual (SRM). The manual gives you pre-approved schemes for defined damage, and when your condition matches one, you follow it…
Read more →Vetting a DER Repair Source: A Procurement Due-Diligence Checklist
Most DER-repair guidance focuses on the repair. This one focuses on the source. Two providers can both offer to restore the same component under approved engineering data and still be…
Read more →International Acceptance of DER Repairs: EASA and Global Fleets
The question arrives the moment a DER-repaired component meets an internationally registered fleet: will repair data approved by the FAA be accepted on an EU-registered aircraft? For repair data on…
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