What must be included in the system description space for a corrosion MAF?

The correct choice emphasizes the importance of tracking the timeline for corrosion maintenance actions through the use of the Corrosion Control and Data Document (CCDD). Specifically, including the Julian date that indicates a 28-day countdown from when the Maintenance Action Form (MAF) is written is critical for ensuring timely follow-up on corrosion inspections and treatments. This systematic approach helps maintain the aircraft's integrity by ensuring that corrosion issues are monitored and addressed within a specified period, enhancing overall safety and reliability.

In the context of corrosion management, having the appropriate timeline in place allows maintenance personnel to effectively schedule preventive measures and inspections. This ensures that any corrosion-related concerns are systematically reviewed and acted upon in accordance with established guidelines, thereby preventing potential failures due to neglect or oversight.

While maintenance history, inspection records, and repair history are all valuable components in understanding the overall condition and actions taken on the aircraft, the specific requirement for the Julian date reflects a proactive approach to corrosion management that emphasizes timely actions based on written MAF documentation.