Module 7.18 Flashcards
What is the definition of damage?
Change in CSA or permanent distortion
What is the definition of a defect?
Event or condition that reduces serviceability
What must be done before any repair?
- Find extent
- Material used
- Type of repair required
Where should the assessment of damage begin?
Inspection of riveted joints and an inspection of corosion
What are the 3 damage categories?
- Allowable
- Non allowable
- Non repairable
What defines abrasion?
Damage as a result of scuffing, rubbing or scraping
What defines corrosion?
Change in CSA due to electro chemical action
What defines a crack?
Partial or full break in the material that cause CSA damage
What defines crease?
Area that is depressed or folded back
What defines delamination?
Disband that occur between adjacent layers
What defines a dent?
Area pushed in from its centre length is the largest distance
What defines a disband?
Separation of material
What defines gauge?
CSA change due to sharp object gives a continuous sharp/smooth groove
What defines a hole?
Complete penetration
What defines a nick?
Local gouge with sharp edges
What defines a puncture?
Full penetration with no regular shape
What defines a scratch?
A line of damage, change in CSA (Cross Sectional Area)
Prior to inspection what should be done?
Open all required panels and structure throughly cleaned
When opening the panels and cowlings what should be looked for?
Any oil or fluid leaks
What can be produced to ensure that no areas are overlooked or forgotten?
A checklist
What inspection methods are often used?
Non Destructive Inspection (NDI)
What must be determined from the inspection?
What is the best repair or is replacing necessary
What visual aids can be used to help the inspection process?
Torches, mirrors, magnifying glass
How can internal structure and components be inspected?
Boroscope