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Essential Maintenance – FAA

Essential Maintenance encompasses any on-wing accomplishment of any maintenance or alteration that the certificate holder has designated as a RII. Essential Maintenance is maintenance that would result in a failure effect that would endanger the continued safe flight and landing of the airplane if it was performed improperly or if improper parts or materials were used. Essential Maintenance also includes the accomplishment of the required inspection itself. Essential Maintenance does not encompass any off wing maintenance.

FAA Essential Maintenance Notice (PDF)

Notice 8900.103 Appendix A Common Questions and Guidance (PDF)

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