CASA KDR Explained: the Knowledge Deficiency Report

A Knowledge Deficiency Report, or KDR, is the feedback CASA issues after a Part 61 aeronautical knowledge exam. It lists the parts of the syllabus where you answered one or more questions incorrectly, identified by their reference in the CASR Part 61 Manual of Standards Schedule 3 — not the individual questions. CASA guidance is authoritative; this page is a plain-English overview.

When you get one

You receive a KDR whenever your exam contained incorrect answers, whether you passed or failed. The pass mark is 70 per cent for most CPL subjects and 80 per cent for Air Law, so it is normal to pass and still be issued a KDR.

What it does and does not tell you

The KDR points at topics, not questions.

• It lists syllabus units or elements by their Schedule 3 reference.
• It does not show the question text, your answer, or the correct answer.
• It does not rank the items by how badly you did.

What you have to do about it

Before the flight test associated with that exam, your flight instructor or approved testing officer must cover every KDR item with you. The KDR is part of the evidence trail that the deficiency was addressed, so keep it with your training records.

How Aero Academic mirrors it

Every practice exam on Aero Academic produces the same style of report automatically: each wrong answer is mapped to its MOS Schedule 3 reference, and you can launch a targeted drill on exactly those items. The aim is that by the time CASA issues your real KDR, the list is short and familiar.

Official sources

• CASA — Flight crew exams
• CASR Part 61 Manual of Standards — Schedule 3 (aeronautical knowledge)

Keep studying

• Air Law (CLWA / CLWH) study guide →