How long can a MSR be extended?

How long can a MSR be extended?

• A. Not extended; overdue items removed until required inspection is completed
• B. 30 days
• C. 6 months
• D. 12 months

Answer: (A)

The key idea is that you don’t extend an MSR. If an item is overdue, you must remove the aircraft from service and complete the required inspection or maintenance before it can fly again. An MSR extension would let a safety-critical item slip past its due date, which isn’t allowed. So the only permissible action is to ground the aircraft and fix the overdue item, then update the MSR with a new due date once the work is done.

The key idea is that you don’t extend an MSR. If an item is overdue, you must remove the aircraft from service and complete the required inspection or maintenance before it can fly again. An MSR extension would let a safety-critical item slip past its due date, which isn’t allowed. So the only permissible action is to ground the aircraft and fix the overdue item, then update the MSR with a new due date once the work is done.