If changes are made to the system's firmware, which document must be revised?

If changes are made to the system's firmware, which document must be revised?

• A. Maintenance log
• B. Record of completion
• C. System diagram
• D. User manual

Answer: (B)

When firmware changes are made, the formal record of completion is the document that must be revised. This record captures that the change was performed, the exact firmware version installed, the date, who did the work, and any verification results. It provides a traceable, auditable trail of the modification, which is essential for safety and future maintenance. The maintenance log covers routine upkeep but doesn’t provide the formal closure of a specific change. The system diagram shows the current layout and may need updates if the change alters architecture, but it isn’t the primary document that proves the change occurred. The user manual would describe operating the system with the new firmware, but revising it is a separate step from documenting the completion of the change.

When firmware changes are made, the formal record of completion is the document that must be revised. This record captures that the change was performed, the exact firmware version installed, the date, who did the work, and any verification results. It provides a traceable, auditable trail of the modification, which is essential for safety and future maintenance.

The maintenance log covers routine upkeep but doesn’t provide the formal closure of a specific change. The system diagram shows the current layout and may need updates if the change alters architecture, but it isn’t the primary document that proves the change occurred. The user manual would describe operating the system with the new firmware, but revising it is a separate step from documenting the completion of the change.