Sheet Metal Structural Repair Flashcards
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Read the first 7 Sheet Metal Structural Repair flashcards as text
Which document is normally the primary approved source for repairing structure on a transport-category aircraft?
Answer: The manufacturer's Structural Repair Manual (SRM)
The SRM gives approved repair data specific to that aircraft's structure.
A structural repair classified as a major repair must be documented on which form?
Answer: FAA Form 337
Major repairs and alterations are recorded on FAA Form 337.
Which damage category applies when a section must be cut out and a new section spliced in?
Answer: Damage repairable by insertion
Insertion repair replaces the damaged section with a new piece spliced into the structure.
Why are lightening holes in ribs and bulkheads usually flanged?
Answer: To add stiffness lost when the material was removed
Flanging the hole edge stiffens the web so it resists buckling.
What is the purpose of the pure aluminum layer on Alclad sheet?
Answer: To protect the alloy core from corrosion
The pure aluminum cladding is anodic to the core alloy and resists corrosion.
What does the temper designation 2024-T3 indicate?
Answer: Solution heat treated, cold worked, and naturally aged
T3 means solution heat treated, cold worked, then naturally aged to a stable condition.
Which rivet alloy is preferred for riveting magnesium structure?
Answer: 5056 (B)
5056 rivets are used with magnesium because they reduce dissimilar-metal corrosion.
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