Manufacturing Inspection District Office

MIDO

Section 01: Organizations & Authorities

Definition

An FAA field office responsible for the oversight of production approval holders, including Production Certificate holders and TSO Authorization holders. MIDOs conduct conformity inspections, audit production quality systems, issue production approvals, and oversee the airworthiness release process for newly manufactured articles. They are the production-side counterpart to the ACO.

Primary Sources

FAA Order 8120.23 — Certificate Management of Production Approval Holders Through Product LifecycleFAA

Describes MIDO roles in production approval oversight.

Related Terms

Federal Aviation Administration (FAA)Aircraft Certification Office (ACO)Flight Standards District Office (FSDO)Production Certificate (PC)

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