A 100-hour inspection was due at 3302.5 hours. The 100-hour inspection was actually done at 3309.5 hours. When is the next 100-hour inspection due?
A
3312.5 hours.
B
3395.5 hours.
C
3402.5 hours.✓ Correct Answer
Explanation
14 CFR 91.409(b) allows the 100-hour limit to be exceeded by up to 10 hours only to reach a place where the inspection can be done, and the excess time must be included in computing the next 100 hours. The next inspection is therefore still based on the original due time: 3302.5 + 100 = 3402.5 hours, not 3309.5 + 100 = 3409.5. 3312.5 is just the 10-hour ferry allowance, and 3395.5 subtracts the overrun twice.
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