Random Aeronautical Term
M&D (Malfunction and Defect) report
A small postcard- like form (FAA Form 8330) used by repair stations, maintenance shops, and technicians to report an unacceptable condition to the FAA. Information on these forms provides the basis for the General Airworthiness Alerts and subsequent Airworthiness Directives.
[Source: FAA-H-8083-30B AMT Powerplant Handbook]
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