An Avcon conversion changes a 172 in ways that matter in the cockpit. The engine makes 180 horsepower and the propeller is constant-speed, so there’s a propeller control on the panel that a pilot coming from a stock 172 may never have used.
Modifications like this are approved through supplemental type certificates, and they come with flight manual supplements that change procedures and sometimes limitations. A checklist written for a stock 172 won’t cover the prop control, and it won’t reflect the supplement.
CheckMate lists a checklist specifically for 172 I, K, L and M models with the 180 hp Avcon constant-speed prop. Compare it with your airplane’s STC supplement before you use it.
Quick answer: CheckMate Cessna 172 IKLM 180HP Avcon Constant Speed Prop Checklist is a model-specific cockpit checklist for pilots who fly the Cessna 172 I, K, L and M with the 180 hp Avcon constant-speed prop conversion. It suits owners and renters of 172 I, K, L and M airplanes with the Avcon 180 hp constant-speed conversion. It’s offered as the original CheckMate, CheckMate+ and the personalized CheckMate Pro, with the CheckMate versions in Standard and Compact sizes. It supplements, not replaces, the airplane’s POH/AFM, so confirm it matches your aircraft’s exact model, year, engine and handbook before relying on it. It’s available on Skyfarer and at Skyfarer Shop.
Choosing a format
- CheckMate. The design that started it all, with the familiar legacy look, in Standard (6.5″ x 9″) or Compact (5″ x 7″) size.
- CheckMate+. Updated design language for better readability and safety, with passenger and crew briefing prompts, abort plan prompts and ATC communications prompts. It includes an instant low-res, black-and-white temporary digital download, and comes in Standard (6.5″ x 9″) or Compact (5″ x 7″) size.
- CheckMate Pro. A personalized version of CheckMate+. Add your tail number, name or phone number, your empty weight and useful load, and details for up to five airports you visit often. Typical production time is within 48 hours; Standard (6.5″ x 9″) or Compact (5″ x 7″) size.
Setting it up for your airplane
- Compare it with the POH/AFM. Read it side by side with your airplane’s handbook and check speeds, limitations and emergency procedures. Where they differ, the handbook wins.
- Match model, year and engine. Check the airplane’s registration and data plate, then confirm the checklist fits that model, year and engine, and any STCs installed.
- Check the STC supplement. Compare the checklist with your conversion’s flight manual supplement, including any power, propeller or limitation changes.
- Read, then verify. Many pilots run a flow from memory and then read the checklist to verify. Whatever method you were taught, use it the same way each time.
Good to know
Converted airplanes vary. The engine, propeller and paperwork in your airplane are what count, so read the supplement and the logbook entries for the conversion before relying on any checklist.
Pilot tip: If you’re new to constant-speed props, have an instructor walk you through power changes in the order your airplane’s supplement and POH call for, and practice them until the sequence is automatic.
More photos
Where to buy
CheckMate Cessna 172 IKLM 180HP Avcon Constant Speed Prop Checklist is sold by Skyfarer Shop. Find it on the Skyfarer marketplace or order directly from Skyfarer Shop. Either link shows the current price, shipping options and return terms.
Frequently asked questions
Will this work for a 172 with a different 180 hp conversion?
Not necessarily. This listing is titled for the Avcon constant-speed conversion. Other conversions, including fixed-pitch ones, come with different supplements, and CheckMate lists separate checklists for some of them.
Does this checklist replace the POH?
No. It supplements the airplane’s POH/AFM, which remains the authority for procedures, limitations and performance. Confirm the checklist matches your aircraft’s exact model, year, engine and handbook.
What’s the difference between Standard and Compact?
Standard is 6.5″ x 9″ and Compact is 5″ x 7″. Compact suits smaller kneeboards and tight cockpits; Standard gives the print more room.
