How often should regular inspections of fabric covering be conducted?

Regular inspections of fabric covering should be conducted at least annually or after significant flight activity because this is essential for ensuring the integrity and safety of the aircraft. Fabric covering is subject to wear and tear due to environmental factors such as UV exposure, moisture, and temperature fluctuations, as well as mechanical stresses from flight operations. Performing inspections annually allows for a systematic evaluation of the fabric’s condition and helps identify any potential issues before they develop into serious problems.

Additionally, inspecting the fabric after significant flight activity is critical, as this can help catch any damage or deterioration that may have occurred during those flights. This proactive approach to maintenance helps preserve the structural integrity of the aircraft and ensures that it remains safe for operation.

The other options do not provide the same level of diligence needed for aircraft safety. Simply inspecting when wear is visible may lead to overlooking less obvious signs of deterioration, while only inspecting every five years is too infrequent given the conditions the covering can be subjected to. Lastly, only inspecting before long flights does not account for ongoing wear that may occur between flights and could leave the aircraft vulnerable during regular operations.