Final answer:
When a substantial item of equipment is permanently installed or removed from an aircraft, an additional record entry or change should be made in the aircraft's equipment list or weight and balance record.
Step-by-step explanation:
When a substantial item of equipment is permanently installed or removed from an aircraft, in addition to the maintenance log book entry, there should be an additional record entry or change made. This record entry or change should be made in the aircraft's equipment list or weight and balance record.