When pilots work toward their Certified Flight Instructor (CFI) Add-On, there’s one requirement that often comes as a surprise: the written test.
It’s not unusual for pilots to assume that once they’ve already completed written tests for their previous ratings, the CFI Add-On will be just about teaching and flying. But the FAA requires a separate written knowledge test specifically for the CFI Add-On.
Why This Surprises Pilots
We’ve seen it time and again — pilots show up ready for their check-ride, only to discover they’re missing the written test endorsement. That mistake can delay your check-ride, cost you more money, and stretch out your training.
It’s a small detail, but an important one.
What You Need to Know
Yes, there is a written knowledge test required for the CFI Add-On.
You must complete it before your check-ride.
The test covers teaching fundamentals, regulations, and practical knowledge you’ll need as an instructor.
Just like your previous ratings, preparation is key.
How H.O.G.S. Helps You Prepare
At Helicopter Online Ground School (H.O.G.S.), we’ve guided countless pilots through their ratings — including the CFI Add-On. Members get access to:
Comprehensive video training covering Private, Instrument, Commercial, and CFI
Coaching through the tricky parts that often hold pilots back
AskHogs.com, where you can get answers 24/7 — even from Kenny’s AI clone built right into the courses
👉 Take a 24-hour free test flight inside our system and see how it works. Every membership comes with a 30-day money-back guarantee.
The Bottom Line
Don’t get caught off guard. Yes — you will need to pass a written test for your Helicopter CFI Add-On. With the right preparation, it’s just another step on your path to becoming a confident, check-ride ready instructor.