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is the performance of tasks required to ensure the continuing airworthiness of an aircraft or aircraft part, including overhaul, inspection, replacement, defect rectification, and the embodiment of modifications, compliance with airworthiness directives and repair.
Aircraft maintenance
Aircraft maintenance is one of the ________________________ that aircraft airlines and owners should maintain and never underestimate.
most important activities
Here are just some of the routine maintenance tasks performed by an AMT:
· cleaning aircraft and components
· application of corrosion prevention compound
· lubricating parts
· draining and troubleshooting fuel systems
· checking and servicing hydraulic and pneumatic systems
· replacing components
· inspecting for general wear and tear
________________________or preventive work to anticipate and prevent failures.
__________________________ Repair maintenance and On-condition maintenance
Scheduled or preventive work to anticipate and prevent failures.
Unscheduled work - Repair maintenance and On-condition maintenance
Why Aircraft Maintenance is Important?
Avoiding lost flights because of failure.
Maintaining good performance.
Ensuring passenger safety.
Extending the life of the aircraft.
Who’s behind this maintenance?
The ICAO defines the licensed role of aircraft maintenance _____________________________, noting that "The terms in brackets are given as acceptable additions to the title of the license. Each Contracting State is expected to use in its own regulations the one it prefers."
(technician/engineer/mechanic)
Thus, aircraft maintenance technicians, engineers and mechanics __________________________. However different countries use these terms in different ways to define their individual levels of qualification and responsibilities.
all perform essentially the same role
In Europe aircraft maintenance personnel must comply with Part 66, Certifying Staff, issued by the European Aviation Safety Agency (EASA). This regulation establishes four levels of authorization:
Level 1: General Familiarization, Unlicensed
Level 2: Ramp and Transit, Category A
Level 3: Line Certifying Staff and Base Maintenance Supporting Staff, Category B1 (electro mechanic) and/or B2(Avionics)
Level 4: Base Maintenance Certifying Staff, Category C
There are basically two major categories of maintenance tasks carried out on an aircraft:
Scheduled or Unscheduled
Classification of Maintenance:
This can be basically classified into 5 main types of maintenance
Preventive maintenance
Predictive maintenance
Corrective maintenance
Periodic maintenance
Zero hours (overhaul)
is "a routine for periodically inspecting" with the goal of "noticing small problems and fixing them before major ones develop. "Ideally, "nothing breaks down."
Preventive maintenance (PM
Preventive maintenance (PM)
The main goal behind PM is for the equipment to make it from one planned service to the next planned service without any failures caused by_____________, ____________, or __________________ (preventable items), which Planned Maintenance and Condition Based Maintenance help to achieve by replacing worn components before they actually fail
fatigue, neglect, or normal wear
Main objectives of Preventive maintenance (PM) are:
• Enhance capital equipment productive life.
• Reduce critical equipment breakdown.
• Minimize production loss due to equipment failures.
______________________ techniques are designed to help determine the condition of in-service equipment in order to estimate when maintenance should be performed. This approach promises cost savings over routine or time-based preventive maintenance, because tasks are performed only when warranted.
The main promise of _______________________ is to allow convenient scheduling of corrective maintenance, and to prevent unexpected equipment failures.
Predictive maintenance
This approach promises _________________ over routine or time-based preventive maintenance, because tasks are performed only when warranted
cost savings
is a type of maintenance used for equipment after equipment break down or malfunction is often most expensive – not only can worn equipment damage other parts and cause multiple damage, but consequential repair and replacement costs and loss of revenues due to down time during overhaul can be significant.
Corrective maintenance
is a strategy that requires maintenance tasks to be planned ahead of time on equipment and performed at set time intervals while the asset is operational
Periodic Maintenance
to Ensure safety, obtain high levels of aircraft utilization, provide effective and punctuate operations as well as preserve the value of the airlines’ most important. capital assets, rigorous maintenance program is vital.
ABCD Check - Airline Maintenance
What are some of the MRO facilities here in the Philippines?
LUFTHANSA, A-PLUS AND SIAEP
A Check:
every ______________ flight hours, or every 200–300 flights.
consist of a visual examination of the airframe, powerplant, avionics, and accessories to ascertain the general condition of the aircraft.
The A check take a minimum of _______hours ground time and about _________ man-hours.
every 400-600 flight hours, or every 200–300 flights.
consist of a visual examinaion of the airframe, powerplant, avionics, and accessories to ascertain the general condition of the aircraft.
The A check take a minimum of 10 hours, It needs about 50-70 man-hours.
B Check:
every ________months
include ___________ selected operational check, fluid servicing and lubrication as well as an open inspection of the the panels and cowlings.
___________ days of ground time and about ______________ man-hours.
every 6-8 months
include A check plus selected operational check, fluid servicing and lubrication as well as an open inspection of the the panels and cowlings.
1 to 3 days of ground time and about 160 - 180 man-hours.
C Check:
every _____________ months
include _____________ Check plus detailed inspection of airframe, engines, and accessories, heavy lubrication and a portion of the corrosion prevention program.
Flight Controls are calibrated, major internal mechanism are tested and _______________________ Requirements are fulfilled.
___________________of ground time and about ______________ man-hours.
every 20 - 24 months
include A and B Check plus detailed inspection of airframe, engines, and accessories, heavy lubrication and a portion of the corrosion prevention program.
Flight Controls are calibrated, major internal mechanism are tested and Service Bulletin Requirements are fulfilled.
1 to 4 weeks of ground time and about 6,000 man-hours.
Here are some examples of C Check items:
Visually check flight compartment escape ropes for condition and security
Check operation of DC bus tie control unit
Visually check the condition of entry door seals
Operationally check flap asymmetry system
Pressure decay check APU fuel line shroud
Inspect engine inlet TAI ducting for cracks
Inspect stabilizer attach bolts
Inspect floor beams
Detailed inspection of wing box structure
D Check:
every _________ years
include ___________________ to allow detailed structural inspection.
essentially stripping the aircraft to its shell and rebuilding the interior
about ________________of ground time and about ________________ man hours.
every 6 - 10 years
include removal of cabin interiors to allow detailed structural inspection.
essentially stripping the aircraft to its shell and rebuilding the interior
about 2 months of ground time and about 50,000 man hours.
The ________________ of air travel is the__________________________. The crew is responsible for ensuring that a plane is fit to fly. However, modern aircraft come with complex systems that require not only knowledge in maintenance procedures, functionalities, and policies but also mechanical skills.
The Backbone of air travel is the aircraft maintenance crew. The crew is responsible for ensuring that a plane is fit to fly. However, modern aircraft come with complex systems that require not only knowledge in maintenance procedures, functionalities, and policies but also mechanical skills.
Two broad categories of Aircraft Inspections:
Scheduled and Unscheduled
Both Scheduled and unscheduled maintenance and aircraft inspections are necessary for all aircraft to ensure that they safe to fly and airworthy. some inspections and maintenance schedules are known to _________________________________________.
Both Scheduled and unscheduled maintenance and aircraft inspections are necessary for all aircraft to ensure that they safe to fly and airworthy. some inspections and maintenance schedules are known to both the cabin crews and aircraft technicians.
Scheduled Aircraft Inspections:
refer to any preventive maintenance.
cabin crew and technicians perform at regular intervals.
it includes
___________________________
_____________________________
_____________________________
___________________________
refer to any preventive maintenance.
cabin crew and technicians perform at regular intervals.
it includes
annual examinations
100-hour inspections
preflight checks
progressive inspections
_________________________ happens once every twelve months. It is necessary for all aircraft regardless of whether they are used for recreational purpose, flight instruction, or hire.
Annual aircraft inspection happens once every twelve months. It is necessary for all aircraft regardless of whether they are used for recreational purpose, flight instruction, or hire.
Annual aircraft inspection happens once every twelve months. It is necessary for all aircraft regardless of whether they are used for ______________________, ________________ or ______________
recreational purpose, flight instruction, or hire.
Annual Inspection
It includes all the examinations performed in other aircraft inspections such as ______________ and ______________, _____________________________, review of all _____________, and _________________.
It includes all the examinations performed in other aircraft inspections such as flight controls and avionics checks, testing and inspecting the engine, review of all aircraft logbooks, and flight surfaces checks.
what kind of inspection is this?
All aircraft used to carry passengers for hire, must receive a 100 hours inspection of time in service and must be approved for return to service.
All aircraft used for flight instruction for hire, when provided by the person giving the flight instruction, must also have received a 100-hour inspections.
50-100 hour inspection
Just Read and understand the FAR 43 Appendix D - Scope and Detail to Be Included in Annual and 100-hour Inspection
Just Read and understand the FAR 43 Appendix D - Scope and Detail to Be Included in Annual and 100-hour Inspection
what kind of inspection is this?
The cabin crew has to perform some preflight checks before the plane flies to make sure that nothing is malfunctioned or in a defect. Pilots and student pilots alike must use a checklist so that nothing is forgotten when performing a preflight check. The preflight plane inspection includes walking around the plane and inspecting any flight control surfaces and fuselage components for wear and tear and defects.
Preflight Checks
Preflight Checks
The cabin crew has to perform some preflight checks before the plane flies to make sure that nothing is malfunctioned or in a defect. Pilots and student pilots alike must use a checklist so that ________________ when performing a preflight check. The preflight plane inspection includes walking around the plane and inspecting any flight control surfaces and fuselage components for ________________________.
The cabin crew has to perform some preflight checks before the plane flies to make sure that nothing is malfunctioned or in a defect. Pilots and student pilots alike must use a checklist so that nothing is forgotten when performing a preflight check. The preflight plane inspection includes walking around the plane and inspecting any flight control surfaces and fuselage components for wear and tear and defects.
what kind of inspection is this?
Also known as phase inspection, continuous inspection is utilized when an airplane with a tight flight schedule cannot take long in the maintenance hangar.
To minimize maintenance downtime, the owner may opt for a progressive inspection plan. Progressive inspections benefit owners whose aircraft experience high usage such as fixed base operators (FBOs), flight schools, and corporate flight departments.
Progressive Inspection
_______________________________ can happen anytime a component is suspected of having malfunctioned.
Unscheduled aircraft inspection
Unscheduled aircraft inspection
Unscheduled aircraft inspection ______________________ a component is suspected of having malfunctioned.
Unscheduled aircraft inspection can happen after the cabin crew finds a problem with an aircraft during the preflight inspection.
Unscheduled aircraft inspection can happen anytime a component is suspected of having malfunctioned.
Unscheduled aircraft inspection can happen after the cabin crew finds a problem with an aircraft during the preflight inspection.
Examples of unscheduled aircraft inspection
could be anything from the ___________________, _________________________, ______________. _________________ during the run-up and rough running engine are leading reasons why unscheduled aircraft inspection takes place.
could be anything from the sheared vacuum pump, low landing gear strut, in-flight issues to a worn tire. High magneto drop during the run-up and rough running engine are leading reasons why unscheduled aircraft inspection takes place.
Unscheduled aircraft inspection can mean ______________ for the flight operators, and the technical team has to handle it before the plane is flown. Unscheduled aircraft inspection can; however, disrupt a flight and call the need for a spare aircraft to replace its scheduled routes. It might be required that the technical team drive or fly to where the malfunctioned aircraft is, or the aircraft be brought to their workshop. Both of these options can be __________________, but they are ___________.
Unscheduled aircraft inspection can mean trouble for the flight operators, and the technical team has to handle it before the plane is flown. Unscheduled aircraft inspection can; however, disrupt a flight and call the need for a spare aircraft to replace its scheduled routes. It might be required that the technical team drive or fly to where the malfunctioned aircraft is, or the aircraft be brought to their workshop. Both of these options can be costly and cause delay, but they are worth it.
An aircraft ____________ for unscheduled inspection if it has a component that has not met the safety standards. While each flight has to be approved individually, sometimes the technical team can allow a ferry flight under specific conditions.
An aircraft can’t fly for unscheduled inspection if it has a component that has not met the safety standards. While each flight has to be approved individually, sometimes the technical team can allow a ferry flight under specific conditions.
______________________ usually publish procedures for repairs that specify the required components, operation checks, and time needed once an unscheduled inspection completes.
Manufacturers of aircraft usually publish procedures for repairs that specify the required components, operation checks, and time needed once an unscheduled inspection completes.
means to perform functions that assured continued operation
Service
means to examine by sight and touch.
Inspect
is the maintenance of the aircraft that can be done without having to take the aircraft into a hangar or maintenance
Line maintenance
European administrative safety agency
EASA
means to analyze and identify malfunctions
Troubleshoot
heavy maintenance visit
D check
means to correct a defective repair
Repair
Note