FAA AMT (Aviation Maintenance Technician) Airframe Practice Exam

Which statement about wood decay is correct?

1. Decay can be ignored if it is minimal

2. Decay is only a cosmetic issue

3. Wood can be treated to reverse decay

4. Decay is not acceptable in any form or amount

The correct answer is: Decay is not acceptable in any form or amount

Wood decay is a serious issue that compromises the structural integrity of the wood. It can spread quickly and may not be noticeable until significant damage has occurred. Ignoring decay, even if it is minimal, can lead to costly repairs or even safety hazards. Treating wood to reverse decay is usually not a feasible option, as the damaged wood has already lost its strength. Therefore, decay should not be accepted in any form or amount and should be addressed as soon as possible. Option A and B are incorrect because they downplay the severity of decay and its potential consequences. Option C is incorrect because once decay has set in, it is usually irreversible.