Aircraft Maintenance Checks

<p>To provide redundancy. (B)</p> Signup and view all the answers

<p>Magnesium and aluminum alloy surfaces. (C)</p> Signup and view all the answers

<p>Along rivet lines and lap joints. (C)</p> Signup and view all the answers

<p>Engine temperatures and pressures. (B)</p> Signup and view all the answers

<p>The exhaust areas. (A)</p> Signup and view all the answers

<p>It reduces fuel consumption. (A)</p> Signup and view all the answers

<p>Drill out the rivets to determine the extent of corrosion. (B)</p> Signup and view all the answers

<p>All of the above. (D)</p> Signup and view all the answers

<p>To maintain aerodynamic cleanliness. (C)</p> Signup and view all the answers

<p>To maintain cabin pressure. (A)</p> Signup and view all the answers

<p>Correct fitting torque. (A)</p> Signup and view all the answers

<p>Stretching from stress. (A)</p> Signup and view all the answers

<p>All of the above. (D)</p> Signup and view all the answers

<p>When specified by the manufacturer and of an approved type (A)</p> Signup and view all the answers

<p>Remove loose corrosion by mechanical means (A)</p> Signup and view all the answers

<p>Phosphoric acid- or alkaline-based (B)</p> Signup and view all the answers

<p>Thoroughly rinse with clean water and dry the area (D)</p> Signup and view all the answers

<p>They should be re-plated according to the aircraft manufacturer’s instructions. (B)</p> Signup and view all the answers

<p>The paint raises or swells. (C)</p> Signup and view all the answers

<p>Magnesium is anodic to most commonly used aircraft structure metals. (C)</p> Signup and view all the answers

<p>Stiff non-metallic brush (C)</p> Signup and view all the answers

<p>Nickel-cadmium (NICAD) batteries (A)</p> Signup and view all the answers

<p>Potassium hydroxide (A)</p> Signup and view all the answers

<p>Chromic acid solution (C)</p> Signup and view all the answers

<p>Liquid metal embrittlement (C)</p> Signup and view all the answers

<p>An appearance similar to severe exfoliation (C)</p> Signup and view all the answers

<p>X-ray inspection (A)</p> Signup and view all the answers

<p>Corrosion attack (C)</p> Signup and view all the answers

<p>Any break in the finish (B)</p> Signup and view all the answers

<p>Epoxy Primer (C)</p> Signup and view all the answers

<p>Olive-green (A)</p> Signup and view all the answers

<p>Epoxy primer (C)</p> Signup and view all the answers

<p>Good gloss finish (B)</p> Signup and view all the answers

<p>Two-part wash primer (D)</p> Signup and view all the answers

<p>Ionizes the surface to prevent electrolytic action (D)</p> Signup and view all the answers

<p>Nominal chemical resistance (B)</p> Signup and view all the answers

<p>Clean all fingerprints and traces of oil (D)</p> Signup and view all the answers

<p>Applying protective coatings (C)</p> Signup and view all the answers

<p>To protect the surface finish and allow for thorough inspections (B)</p> Signup and view all the answers

<p>They should be covered. (B)</p> Signup and view all the answers

<p>Immediately wipe it off with a dry towel, then wash with soap and water (A)</p> Signup and view all the answers

<p>To prevent surface scratching (C)</p> Signup and view all the answers

<p>They should be re-lubricated. (D)</p> Signup and view all the answers

<p>Only approved chemical cleaners, following manufacturer’s recommendations (C)</p> Signup and view all the answers

<p>Stiff brushes or abrasive materials (C)</p> Signup and view all the answers

Seals that ensure pressurisation in aircraft; critical for serviceability.

Maintaining clean surfaces to enhance aircraft performance and reduce drag.

Seals at skin joints that help maintain aerodynamic cleanliness.

Applying substances to moving parts to reduce friction and wear.

Checking hoses for leaks, cracks, and secure fittings in fluid lines.

Ensuring electrical wires are secure and free from damage.

Inspecting rivets for corrosion and ensuring proper installation.

Inspecting engine security, leak checks, and accessories operation.

Inspection of nicks, dents, cracks, and cleanliness on the propeller.

Nicks create stress concentrations that may lead to blade failure.

Checks on engine temperatures, pressures, and response to power changes.

Components with a finite service time that require monitoring and replacement.

Identifying and evaluating corrosion on aircraft surfaces.

Locations more susceptible to corrosion, like rivet lines and fasteners.

Regular inspections to ensure functioning of critical aircraft light bulbs.

Regions subject to corrosive influences in gas turbine and piston engine exhaust paths.

Using chemicals specifically approved for rust removal, as per manufacturer guidance.

Removing loose corrosion using tools or manual techniques before chemical application.

A common type of chemical used for corrosion removal; often effective on rust.

Corrosion products from magnesium take up more space, causing expansion and swelling.

Tools like non-metallic brushes and abrasive pads recommended for magnesium work to avoid damage.

Re-plating cadmium-coated parts following specific manufacturer instructions to protect from corrosion.

Using a non-fluffy cloth to apply approved corrosion preventative solutions on magnesium areas.

Thoroughly rinsing corroded areas with clean water and drying them post-treatment to prevent further corrosion.

A two-component primer providing maximum corrosion protection on various surfaces.

An olive-green, slightly porous primer that inhibits corrosion by releasing chromate ions.

An older finish for metal aircraft, applied over zinc chromate, giving good gloss but lower abrasion resistance.

A fast-applied coating for aircraft finishes that allows quick production line processing.

The four basic types of finish coatings: synthetic enamel, acrylic lacquer, polyurethane, and acrylic urethanes.

A two-part primer applied before coatings like acrylic lacquer for better adhesion.

Techniques used in coatings like epoxy and zinc chromate to minimize rust and degradation.

Cleaning surfaces before applying primers and coatings to ensure proper adhesion.

Regular cleaning helps inspect and protect surfaces from corrosion and defects.

Accumulated dirt can hide defects, trap moisture, and add weight to the aircraft.

Different cleaning techniques are required for non-metallic and metallic components.

Oil and fluid spills on tires should be wiped off immediately and washed with soap and water.

Use only approved chemical cleaners and follow manufacturer instructions while cleaning.

Re-lubricate bearings and fittings after washing to ensure smooth operation.

Cover pitot tubes and static ports during washing to avoid contamination.

Spillage of potassium hydroxide from NICAD or Ni-Fe batteries, requiring neutralization.

Process used to neutralize alkali spills with chromic acid crystals in water.

Rapid corrosion of aluminium caused by spilled mercury leading to pitting and embrittlement.

Formation of a mercury-aluminium alloy leading to severe structural damage.

Failure of materials due to the presence of liquid metal, such as mercury.

Using X-ray to locate small mercury particles due to its density.

Immediate action to isolate and recover mercury spilled in aircraft.

Steps taken to prevent corrosion and embrittlement from mercury exposure.