Definition
A bordered box, usually located in the lower right-hand corner of an aircraft engineering or maintenance drawing, that contains identifying information about the drawing. The title block typically lists the drawing number, drawing title, scale, date, name of the company, and the names or initials of the people who drafted, checked, and approved the drawing.
Plain English
The labelled box on a technical drawing that tells you what the drawing is, who made it, and when. It is the drawing's identity tag.
Context Anchor
Seen on aircraft maintenance drawings, parts diagrams, repair drawings, and engineering prints.
Why Pilots Care
When a mechanic or inspector references a specific drawing for a repair or modification, the title block confirms they are looking at the correct drawing, the right revision, and an approved source. Working from the wrong drawing can lead to incorrect repairs.
Analogy
A title block is like the cover label on a checklist or manual page: it tells you exactly what document you are holding before you rely on the details inside.
Intuition Check
A title block is not about legal ownership or an aircraft title. Here, “title” means the identifying information for a technical drawing, and “block” means the boxed area where that information is placed.
Example Sentence 1
Before starting the repair, the technician checked the title block to confirm the drawing number and revision date matched the work order.
Example Sentence 2
Always check the title block on the wiring diagram to make sure the drawing matches the aircraft serial number.