✓ Reviewed by a pilot
The Fundamentals of Instructing knowledge test (test code FOI) has one number to hit. Here it is, with what happens after, from the FAA's testing matrix and the regulations.
70% passes. On the 50-question FOI test, that's 35 right.
The FOI test is 50 multiple-choice questions in 1.5 hours, and the matrix lists a minimum age of 16 to take it. The FAA may add unscored validation questions on top of the scored ones; they don't count for or against you, and the allotted time already covers them.
Checked October 24, 2026 against the official sources listed at the bottom of this page.
Take the free FOI practice test50 questions at the real pass mark, no sign-upYou leave the test center with your Airman Knowledge Test Report (AKTR). It shows your score and a code for every question you missed. Keep the original: your instructor reviews those areas with you, and the examiner can ask about them on the practical test.
There's no waiting period for pilot and instructor tests. To retest you need more training from an authorized instructor who decides you're ready, and their endorsement (14 CFR 61.49). The instructor can sign the Authorized Instructor's Statement right on your failed AKTR. Bring that AKTR to the test center.
You have to pass the practical test within the 24-calendar-month period before the month you take it (14 CFR 61.39). In practice, your knowledge test is good through the end of the 24th month after the month you passed it.
The Flight Instructor Airplane (FIA) test is 100 questions in 2.5 hours, also 70%. CFI passing score · CFI practice test.
70%. The Fundamentals of Instructing test is 50 questions in 1.5 hours, so 35 correct passes.
No. You need additional training and an endorsement from an authorized instructor (14 CFR 61.49).
You must pass the practical test within the 24-calendar-month period before the month you take it (14 CFR 61.39).