Missing Malfunction Inoperative (MMI) repair timeframe is which option?

Missing Malfunction Inoperative (MMI) repair timeframe is which option?

• A. 7 days
• B. 14 days
• C. 60 days
• D. 30 days

Answer: (D)

Missing, Malfunctioning, Inoperative items need a defined repair window to restore airworthiness. The 30-day timeframe is the standard target because it balances the reality of diagnosing the issue, obtaining parts, and scheduling the work with the need to avoid extended downtime. Shorter windows like 7 or 14 days are often impractical due to part lead times and shop availability, while 60 days is typically too long and can raise safety or regulatory concerns. Hence, 30 days is the best answer.

Missing, Malfunctioning, Inoperative items need a defined repair window to restore airworthiness. The 30-day timeframe is the standard target because it balances the reality of diagnosing the issue, obtaining parts, and scheduling the work with the need to avoid extended downtime. Shorter windows like 7 or 14 days are often impractical due to part lead times and shop availability, while 60 days is typically too long and can raise safety or regulatory concerns. Hence, 30 days is the best answer.