Flashcards in Important Info Deck (64):
Five major Assembly Parts
4. Landing Gear
the smallest unit of an element. composed of 3 principals
Protons: Positive Charge
Neutrons: No charge
Electrons: Negative Charge
What are the 4 components for Electrochemical-corrosion to occur?
3. Metal path
Its the most active, is the only component that deteriorates
More Passive, Stronger and draws electrons from the anode
Metal Path is?
Conductor, Where Anode and Cathode connect, and where transfer of electrons occurs
Is any liquid path that can hold an ion
Expanding corrosion products just below metal surface cause a blistering to form?
SELECTIVE ATTACK along a metal's grain boundaries
Threadlike Filaments of corrosion products
Metal cracks parallel to granular structure of the metal
Corrosion where DISSIMILAR metals are joined together
Damage that DOES NOT affect structural integrity of AC
SMALL dents and scratches
Can be repair by bridging the damaged area with a splice material
Repairable by PATCHING
Damage that can be repaired by cutting away a damaged section, and replacing it.
Repairable by INSERTION
High concentration of metal ions
Metal Ion Cell
Electrolyte contains varying amounts of dissolved oxygen
What grit is used when removing oxidation from metal surfaces?
Form for Equipment Maintenance
Distance From the center of the rivet to the edge of the sheet
The perpendicular distance between the rivet rows
How do you determine the rivet layout to use for flush skin repair?
the Shape, and
Location of the skin cutout
What is the sequence for developing a circular layout pattern?
Outside rows first,
then the inner row
How can you determine the number of rivets required in a filler plate?
Identify the size of the cutout
and guidelines in applicable TO
What step must be accomplished before you install a non flush repair on an AC?
What is the most accurate method of locating blind fastener holes?
What must be marked on the patch plate for a non flush repair when the fastener layout is developed on the patch plate?
Location of the cutout
What two KEY measurements are needed to fabricate a STRINGER FILLER?
WIDTH of Flanges and
What is the step after drilling the starting hole during the split sleeve cold working procedure?
Ream the starting hole
How far past the material must the split sleeve extend?
minimum 1/32 beyond the material
What is the last step in the split sleeve cold working process?
Verify the expanded hole size by using the rounded end of check gauge
What should you do first when preparing a repair area for sealant?
Remove all primers
What factor determines how to remove excessive aerodynamic smoothing compound after it has been cured?
Hardness of the surface
What component of a corrosion cell is a liquid?
Where does corrosion development begin?
On the surface of the metal
If anode is SMALLER the cathode
Corrosion is RAPID and SEVERE
If anode is LARGER than cathode
Corrosion is SLOW and Superficial
How does HIGH temperature affect the rate of corrosion?
What areas require special attention when inspecting engine frontal areas and air inlet ducts?
Leading Edges of Inlet
Air cooler cores
When inspecting electrical components what areas are extremely sensitive to corrosion attack, you look for?
Scaly, Flaky corrosion with pits DEEPER than .010"
Corrosion characterized by Discoloration?
Corroded area with pits NO DEEPER than .010
(CPC's)Corrosion preventing compounds are separated in two categories:
Water displacing and
What do chemical surface treatment do for metal?
Improve adhesion and corrosion resistance
3 Methods of applying CPC's
Why are many alkaline cleaners not authorized for cleaning ?
They are INCOMPATIBLE with polyamide insulation on the electrical wiring
Types of media authorized for use on AEROSPACE structures?
I, II, V, and VII
AFTO 244 step by step instruction can be found in TO?
AFTO 350 gives a block by block explanation in TO?
RED X indicates?
UNSAFE OR UNFIT FOR USE
RED (-) Indicates?
CHECK DUE, and UNKNOWN condition
RED (/) Indicates?
Unsatisfactory condition, but NOT Urgent or Dangerous
Aerospace vehicle inspection,
Calendar Inspection and
Delayed Discrepancy Document
Aerospace vehicle fight Status and maintenance
What are the main 3 TCTOs
DIRECT chemical attack
Crevice, sharp corner, or lap joint can keep the oxygen from dissolving uniformly through the electrolyte
Apply Protective coatings in accordance with ____?