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DO-254 Checklists

Understanding and Using Checklists for Successful Program Audits

Have you read the DO-254 standard? Is it clear what you must actually do to comply with DO-254, what data must be reviewed, and what you will be asked during DO-254 audits? Probably not. Are you concerned about this? Probably so. That's why you need checklists.

Checklists are an essential tool to mitigate risks in a DO-254 program. They do this by guiding the teams through all the critical questions that may be asked during certification auditing. This helps ensure the project teams are prepared for their own internal audits and therefore ready for the external auditors.

This "course", which is really a downloadable set of educational checklists, provides an overview and visual description of how and when checklists are used to drive the reviews that occur throughout the DO-254 process. The downloadable checklists set includes 20 spreadsheets covering nearly 1000 questions that must be asked and answered to demonstrate compliance in a DO-254 program. The checklists are each explained so applicants can understand how and when to use them, and they are easily tailored by development assurance level (DAL).


Your Instructor


Tammy Reeve
Tammy Reeve

Tammy Reeve, President of Patmos Engineering Services, has 15 years experience as a DER and trainer for DO-254 and DO-178B/C programs, in addition to 10 years as an avionics engineer for both software and hardware programs. Tammy has been very active in the industry including acting as co-secretary of the "Model Based" committee of SC-205, the chair of DO-254 Users Group, and being Session Chair for DO-254/178C tracks at several SAE industry events. She has designations and has performed work under the FAA, EASA, CAAC, Transport Canada, and ANAC.


Course Curriculum


  Download the DO-254 Checklists
Available in days
days after you enroll

Frequently Asked Questions


When does the course start and finish?
The course starts now and never ends! It is a completely self-paced online course - you decide when you start and when you finish.
How long do I have access to the course?
How does lifetime access sound? After enrolling, you have unlimited access to this course for as long as you like - across any and all devices you own.
What if I am unhappy with the course?
We would never want you to be unhappy! If you are unsatisfied with your purchase, contact us in the first 30 days and we will give you a full refund.
Do these checklists support all Development Assurance Levels (DALs)?
Yes! They are easily tailored by DAL. The spreadsheets show which questions apply to which DALs and let you easily just filter for YOUR DAL.
I hear that there is some new policy coming for DO-254. Is that included?
Yes! AC20-152A is the the final approval stages and these checklist already include the pertinent content. Be the first to be compliant to these new requirements!
Do the checklists include anything to help with Tool Qualification?
Yes, there is a special spreadsheet/checklist just for the Tool Assessment and Qualification process.

Get started now!