Aircraft maintenance Flashcards
Prior to each flight
'’Walk-around”—visual check of aircraft exterior and engines for damage, leakage, and brake and tire wear
Every 45 hours (domestic) or 65 hours (international) flight time
Specific checks on engine oils, hydraulics, oxygen, and specified unique aircraft requirements
Every 200–450 hours (22–37 days) flight time
“A” check—detailed check of aircraft and engine interior, services and lubrication of systems such as ignition, generators, cabin, air conditioning, hydraulics, structure, and landing gear
Every 400–900 hours (45–75 days) flight time
“B” check (or “L” check)—torque tests, internal checks, and flight controls
Every 13–15 months
“C” check—detailed inspection and repair program on aircraft engines and systems
Every 2 years (narrow-body aircraft)
Inspection and reapplication of corrosion protective coatings
Every 3–5 years
Major structural inspections with attention to fatigue damage, corrosion, etc. Aircraft is dismantled, repaired, and rebuilt. Aircraft is repainted as needed
lubrication or servicing
where the replenishment of the consumable reduces the rate of functional deterioration.
operational or visual check
where identification of the failure must be possible.
inspection or function check
where reduced resistance to failure must be detectable and the rate of reduction in failure resistance must be predictable.
restoration
where the item must show functional degradation characteristics at an identifiable age, have a large proportion of units survive to that age, and be able to be restored to a specific standard of failure resistance.
discard
where the item must show functional degradation characteristics at an identifiable age, and a large proportion of units are expected to survive to that age..
