Skip to content

I removed an incorrect ESN from an aircraft, or I installed an incorrect ESN on an aircraft, how do I correct my mistake?

← Engine Profile - Engine Change Tool
If you made a mistake with the engine change process, please follow the steps below to request CFM to roll back the removal or installation. You will need to submit a new engine change once CFM has rolled back the removal or installation.

Click on ‘Ask CFM’:


Click on ‘Engine’:


Click on ‘Engine Change’:


In the description field below provide the ESN that you incorrectly removed or installed and the associated aircraft tail number:

Feedback and Knowledge Base

(thinking…)