7D Flashcards
What are metal parts inspected for?
Cleanliness and external evidence of damage.
Leaks and discharge.
Overheating.
Fluid ingress.
Obstruction of drainage or vent holes or overflow pipe orifices.
Correct seating of panels and fairings and serviceability of fasteners.
Distortion, dents, scores and chafing.
Pulled or missing fasteners, rivets, bolts or screws.
Evidence of cracks or wear.
Separation of adhesive bonding.
Failures of welds or spot welds.
Deterioration of protective treatment and corrosion.
Security of attachments, fasteners, connections, locking and bonding
What are defects on rubber/fabric/glass fibre/plastic part defects?
Cleanliness, Cracks and cuts, chafing, kinking, deterioration, loss of flexibility, overheating, fluid soakage, attachment security
Pulley/chain defects
-Incorrect alignment
-Freemovement
-Scores
-Flattening
-Cracks and loose rivets
-General security
Electrical defects
Cleanliness
Overheating evidence
Attachment security
Scoring or worn brushes
Fluid ingress
Burning or pitting on contacts
Inlet and Exhaust defects
Birds are cunts
What should be done before replenishing a hydraulic system?
Check for the cause of a leak
What is a symptom of hydraulic leak
Controls fucked or weird
How do you inspect aircraft brakes?
Check it with a brake thickness stick (yes they are real)
Examples of NDT techniques
Borescope, Eddy currents, Radiography, Ultrasonic, Moisture detector, Liquid penetrant
Liquid penetration NDT can be used to test composite materials? T or F
False
3 steps to liquid penetration NDT
- Submerge in liquid penetrant
- Clean extensively
- Put developer over top and rest
Absolute eddy current testing measures:
the permeability of a material
Comparison eddy current testing measures:
the conductivity of a metal in reference to a “reference material”
Ultrasonic inspection is a suitable method for detecting
internal delamination, voids or inconsistencies in composite components, plastics, ceramics and most metals
Any part which is removed must have its identity and location retained with the part until its reinstalled. T or F
T