In-Flight Test Procedures.
Structured Mixture, Ignition & Induction Diagnostic Suite for Piston Aircraft
A complete set of in-flight diagnostic procedures and standardised test cards designed for aircraft owners who want structured engine data under controlled cruise conditions. This suite enables the systematic evaluation of mixture distribution (GAMI Spread), ignition system performance under lean stress, and induction system integrity, while documenting cylinder-specific EGT behaviour in a repeatable and disciplined manner.
Built for execution at or below 65% power in stable cruise.
General Aviation’s Operational Clarity Tools
General Aviation’s Operational Clarity Tools.
A practical diagnostic suite for pilot-owners who want structured engine data — not assumptions.
These in-flight test procedures help you evaluate mixture distribution, ignition performance, and induction system integrity under controlled cruise conditions.
- Mixture Distribution Test (GAMI Lean Test)
- Ignition Stress Test (Lean-of-Peak Magneto Check)
- Induction Leak Test (NA & Turbo variants)
- Standardised Test Cards for repeatable execution
Replace Guesswork With Measured Data
Structured testing allows you to understand:
- Where mixture imbalance originates
- Whether ignition performance is stable under lean stress
- Whether induction leaks affect specific cylinders
Immediate Access
Download the In-Flight Test Procedures
Who this is For
Owners who want to understand their engine beyond annual inspections.
Operators using engine monitor data and lean-of-peak procedures.
Pilots who prefer measurable data over anecdotal maintenance advice.
Those noticing roughness, or unexplained performance variation.
Get in Touch
If you have a question about an upcoming webinar, past sessions, or whether a specific topic is relevant to your situation, you’re welcome to get in touch.