AGING AIRCRAFT COURSE OUTLINE

COURSE OUTLINE

1. Things that 'age' an Aircraft 1 hour
   Fatigue Crack Initiation & Propagation, Corrosion, Foreign Damage, Synergistic Failure Modes, Susceptibility of High Strength Materials
2. Convertible in the Sky!! 1 hour
   Deadly Corrosion + Fatigue Combination, Short-Hop Flights -- Effect of Spectrum on Aging, Inspections, Important Lesson on Fail-Safe.
3. Fail Safe, Safe Life & Damage Tolerance 2 hours
   Structural Illustrations, Safety Factors, Miner's Myth, Fracture Mechanics Fundamentals, Crack Growth Example, Practical Data, Residual Strength
4. Airworthiness Assurance Task Force Findings 2 hours
   Human Factors, NDT Technology, Inspector/mechanic Training, Maintenance Communications, Fatigue Testing
5. Multiple Site Damage 1 hour
6. How Aging affects Fail-Safety 1 hour
   Case Study: Boeing 747 Flap Track Assembly Stress Corrosion
7. Aircraft Certification -- Transport and Commuter 1 hour
8. Wear Protection 1 hour
9. Fretting Fatigue 2 hours
   Case Study: A Helicopter Impeller Failure
10. Hydrogen Embrittlement - Fasteners 1 hour
11. Corrosion Overview 2 hours
    General Attack, Pitting, Intergranular Corrosion, Crevice Corrosion, Exfoliation and Microbiological Corrosion, Stress Corrosion, Corrosion Fatigue
12. Corrosion Control Methods 3 hours
    Designs to Minimize Corrosion, MIL-S-5002, MIL-F-7179, NAVAIR 01-1A-509, NDI, Materials Selection, Treatments, Coatings, Amlguard, Unicoat
13. Lap Splice Cracking Data 1 hour
14. NASA Aging Aircraft Efforts 1 hour
15. Engine Integrity 2 hours
    Turbine Disk Failure Modes, Bursting, Plasticity, Hi-Cycle & Low-Cycle Fatigue, Retirement for Cause, Short Crack Data ENSIP, Engine DTA, Case Study: United Airlines DC-10-10/CF6-6D Accident, Sioux City, Iowa
    Fan Disk Investigations, Airline Inspections, The Role of FAA
16. Loads 1 hour
    Flight Loads Data Collection, Structures Technology, Ground and Handling loads, Truncation, Clipping, Omission
17. U.S. AIRLINES' VIEWS on AGING AIRCRAFT 1 hour
18. Nondestructive Inspection on Aging Fleet 2 hours
    D checks, Thermography, Probability of Detection Curves, X-ray,
    Bolt-hole Eddy Current, Magnetic Particle, Ultrasonic, Penetrant
19. Nondestructive Testing of Aging Aircraft 1 hour
20. Pressure Test 1 hour
    Proof Tests Advantages and Disadvantages
21. Repair Techniques 1 hour
    Unique Problems in Multi-Site Damage, Composite Repair Methods, the Airworthiness Patch
22. Use of Damage Tolerance in Maintaining Airworthiness 2 hours
23. Cracks at Structural Holes 3 hours
    Fatigue Life Enhancement, Cold Working of Holes to Extend Airframe Life, Stress Intensity Factors, Cracks at Loaded Holes, Multiple Holes, Crack Growth Acceleration
24. Composites Fatigue & Damage Tolerance 2 hours
    Delaminations, Stiffness Losses, Fastener Hole Integrity, Impact Damage, Residual Strength Predictions, Moisture Ingression, Environmental Damage
25. Emerging Technology For Aging Aircraft 1 hour
    Photogrammetry, Moire Motion Detection, Shearograph, New Holographic Techniques
26. SPECIAL TOPICS:
    • Avionics Corrosion Control
    • Crashworthiness
    • Paint Stripping
    • Shot Peening