Tech manual changes are identified by referring to?

• A. Change logs
• B. Revision histories
• C. Bulletin summaries
• D. List of effective pages

Answer: (D)

In maintenance manuals, you need to know exactly which pages are currently in effect. The list of effective pages shows the page numbers that are valid, along with their revision status and the date those pages became active. When a change is issued, the affected pages are revised and the LOEP is updated, making it the definitive reference to use to verify you’re working with the correct data.

Change logs and revision histories document what changed and when, but they don’t by themselves indicate which pages of the manual are presently in force. Bulletin summaries describe service bulletins, not the current page set. The list of effective pages directly identifies the current pages, so it’s the right tool to reference for identifying manual changes in use.