World Headquarters - Aero Country Airport (T31) McKinney, Texas 75071, United States

1+(208) 304-1057

FAA DAR Services since 1995...

Welcome to T C Willis, llc - Aviation Quality Solutions


Thomas C. Willis, President and Principal -  ASQ CQA, FAA DAR-T & F, FAA Certificated; A&P, Repairman, Pilot - ASEL and sUAS.

Contact details

We will respond within 10 hours...

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Available worldwide...

T C Willis, llc - Aviation Quality Solutions

Aero Country Airport (T31) Mckinney, Texas 75071, United States

m: 1+ (208) 304-1057 e: Payments to: PayPal.Me/TCWILLISLLC


By appointment only

About Us


Supporting aviation Leaders since 1993...

* Certificate Crisis Intervention

* Interim Quality Executives

* Advanced Quality System Design and Implementation Support

* Supply Chain Quality Problem Solving

* Customized M&A Project Support

* Specialized Executive Coaching

* Process Improvement Consulting

* Experimental Aircraft Certification Support 

* Effective Quality Audit Training with an architect and implementer of the CASE Air Carrier Training Program... 

*  Available for Aviation Quality Management Keynote Address Engagements 


Over thirty years of hands-on quality problem solving experience in twelve countries

A few example missions... client references available:

* Facilitated the restoration of suspended 14 CFR 145 Major MRO Certificates for multiple clients domestic and foreign.

* Facilitated successful 14 CFR Part 121 air carrier - - post accident Quality System recovery

* Supported major engine manufacturer acquisitions

* On-Call Leadership Coach to four major international air carriers.

* Trained FAA CSET core Leadership and Inspectors

* Implemented significant Takt time reductions for first major composite airliner manufacturer.

* Delivered FAA Designated Airworthiness Representative Services to more than 200:  Amateur and R&D aircraft builders, Certified Repair Stations, Aerospace Manufacturers and Aeronautical Product/Article Distributors.

Provider of FAA Designated Airworthiness Representative Services - since 1995. 

DAR-T (maintenance) Function Codes: 101, 102, 103, 114, 115, 124, 128, 129, 132, 147, 148, 149, 162, 171, 177, 178, 179, 180, 188, 189, 190 and 191. Limitations: None


door to door

DAR-F (manufacturing) Function Codes: 9, 19, 20 & 21. 

Limitations: None


door to door 

**EAA/CAF Member Discounted Project Rate: Call

See EAA Recommendation:


Work with accomplished aviation quality management professionals you can trust...

References available from North American, European, Asian and Australian clients.

* Reach-out now and we will respond to you within 10 hours.


Find out more

Quality Aviator Tales...