Chap 13 Flashcards
What is essential for aviation maintenance personnel?
A sound working ethos must be established and maintained at all times.
What should technicians look for during maintenance?
Signs of damage, leaks, corrosion, insufficient clearance between electrical cables and rotating components, or other signs of unserviceable items.
What should become second nature when performing maintenance?
Always look at the adjacent structure and components when moving to or from an area of the aircraft or when removing or installing components.
What is the primary responsibility of aviation technicians during maintenance?
To ensure the safety of themselves and others.
What should technicians do before starting a task?
Ask ‘am I prepared for the task’ and read the work procedure or work card fully.
What assessments must technicians read and abide by?
All Risk and COSHH assessments.
What should technicians do if they do not understand a task?
Ask for clarification; never assume, always check.
What personal safety measures should technicians take?
Wear the correct clothing and safety equipment, and remove loose articles from themselves and their clothing.
What should technicians do to prepare the work area?
Prepare the work area and collect ASE and tools before commencing the task.
What should technicians do regarding their supervisor?
Keep the supervisor informed.
What should technicians avoid doing with components?
Never force components apart.
What should be done upon completion of the work task?
Remove all tools and servicing aids, close all cowlings and panels, and complete all documentation.
What are maintenance errors?
Mistakes made by maintenance personnel that potentially put aircraft flight safety at risk.
What should a technician never do to prevent maintenance errors?
-working under the influence of drink or drugs (legal or otherwise).
-Working under stress
-never Horse play
-follow procedures
-work within their ability
-be attentive and stay focused
What is a key factor to avoid maintenance errors?
Avoiding stress where possible is important, as it can lead to distractions and mistakes.
What behavior should be avoided during maintenance?
Never horse play, especially with air lines or power tools.
What should technicians always do when performing maintenance?
Technicians should follow procedures.
What is important regarding a technician’s ability?
Should work within their ability.
What is essential for maintaining focus during maintenance?
Being attentive and staying focused is essential.
Why is tool control important in aviation maintenance?
Failure to adequately control tools could significantly increase the risk to Air Safety.
What should be done with tools after use?
All tools are to be returned as soon as practicable.
What type of tools should be used?
Only use approved tools issued from the Tool store.
What should you do with damaged tools?
Never use damaged tools; exchange or report them ASAP.
What is required for maintenance area cleanliness?
Maintenance areas and floors are to be cleaned regularly.
What should be done with spillages in maintenance areas?
All spillages must be cleaned up immediately.
What are loose articles?
items that have been dropped, lost, or unaccounted for in and around aircraft, creating a potential hazard.
What are some examples of loose articles?
items that have been dropped, lost, or unaccounted for in and around aircraft, creating a potential hazard.
What should technicians do to prevent misidentification of parts during removal?
Technicians should mark or label assemblies prior to their removal to aid re-assembly.
Attachment bolts or fasteners should be bagged, labelled and remain with the removed component if it is to be refitted.
What is a recommended practice for temporarily refitting bolts?
If possible, the bolts could be temporarily refitted in their removed positions to aid with assembly.
Special to type items such as non-magnetic bolts should be isolated to prevent cross contamination.
What is the function of examination in aircraft maintenance?
The function of examination is to find all defects that can reduce flight safety, decrease the life of a component, or reduce performance.
What is imperative during the examination process?
It is imperative that the examination is carried out correctly and that the surrounding areas adjacent to the place of work are also examined.
What should be avoided during the examination procedure?
It is important to avoid unnecessary dismantling.
What is the first step in the examination procedure?
Look. Carried out before cleaning as there might be indications of a defect, such as staining from a leak or corrosion deposits.
Why is cleaning part of the examination procedure?
Cleaning allows for a better examination; however, it should not be over cleaned as minor damage may be hidden.
What is the second ‘Look’ in the examination procedure?
Look again after cleaning.
What does the ‘Feel’ step in the examination procedure involve?
Some defects can be detected by running a finger along the spline or checking for wear on bearings.
How is the ‘Listen’ step used in the examination procedure?
Listening is used to detect unusual noises, such as clicking from a gearbox or sounds from a dry bearing.
What role does smell play in the examination process?
The sense of smell must not be ignored as an effective tool in the examination process.
What is the recommended order of applying senses during examination?
The order is typically Look and then Clean to avoid removing evidence of defects.
What should be examined after a component is removed?
The surrounding areas should always be examined, especially if the removed component normally obscures the area.
What protective measures should technicians take when cleaning components?
Technicians should wear the correct clothing and body protection.
What cleaning agents should be used?
Approved cleaning agents, in accordance with COSHH assessments, should be used.
What should be done before cleaning components?
Examine them for signs of faults such as fretting juice.
What should be done after cleaning components?
Examine the component again, as cracks and other faults could be hidden by grime.
What should be done with spillages during cleaning?
Clean up spillages immediately and dispose of cleaning material in the correct manner.
What are some common maintenance faults in aviation systems?
Common faults include impact damage, corrosion, lubrication issues, loose/missing rivets, cracks, blocked drains, and wear.
What is impact damage?
Impact damage comes in various forms, such as wire/bird strikes or impact to the underbelly of the fuselage.
Where is corrosion particularly expected?
Corrosion is expected in areas such as the battery area, inside of panels, steel components, aluminium alloy components, and undercarriage assembly.
Why is correct lubrication essential?
Correct lubrication minimizes wear and extends the life of components and the airframe.
What should be regularly lubricated?
Hinged fairings and doors should be lubricated at regular intervals, especially following an aircraft wash.
What should be examined regarding rivets?
Rivets should be examined to ensure their presence and that they form an adequate joint.
Why is it important to investigate cracks?
Cracks can worsen until potential component failure, and all cracks must be investigated using non-destructive testing techniques.
What must be kept free from blockage?
Drain holes must be kept free from blockage to prevent trapping moisture within the airframe structure.
What should maintainers recognize about wear?
Maintainers should recognize when detected wear is beyond the limit or the rate of wear warrants further investigation.
What should be used to clean transparencies?
Only approved cleaning methods; abrasives must not be used.
What can impact damage lead to in aircraft transparencies?
Crazing and other faults, similar to a chip in a car windscreen.
How often are British Army aircraft washed?
At regular intervals to remove dirt and grime.
Why is it important to wash aircraft?
It allows any potentially hidden faults to be seen.
What is surface finish restoration in aircraft maintenance?
Restoring the surface finish, such as paint, to prevent material deterioration.
What is the requirement for maintenance terminology in the Defence Air Environment?
To standardise Maintenance Terminology as per JAP (D) 100C-20.
What does ‘Check’ mean in maintenance terminology?
To compare the item with the specified standard and inform the supervisor if it does not meet the standard.
What does ‘Examine’ entail in maintenance terminology?
A comprehensive scrutiny of the item, supplemented by a physical security check, as necessary.
What does ‘Examine as Far as Possible’ mean?
To do a comprehensive scrutiny within physical constraints without removing or disconnecting equipment.
What is involved in an ‘Inspect’ action?
Measuring or testing the item against applicable requirements, typically done by a supervisor.
What does ‘Operate’ mean in maintenance terminology?
To put the item into action to determine if it is serviceable and functions correctly.
Disconnect
Detach the item from another. This task is to be performed in accordance with authorized procedures and trade practices.
Reconnect (Connect Again)
Attach an item again that was previously disconnected. This task is to be done in accordance with authorized procedures and trade practices.
Fit (Install) Correctly
Attach the item to another. This task is to be done in accordance with authorized procedures and trade practices.
Refit (Install Again)
Install the item which has been previously removed. This task is to be done in accordance with authorized procedures and trade practices.
Remove
Correctly disconnect and detach the item from its mounting or position. This task is to be done in accordance with authorized procedures and trade practices.
Replace
Remove the item and install a new and/or serviceable item. This task is to be done in accordance with authorized procedures and trade practices.
Replenish (Fill)
To put the correct material into a tank, bottle or other container to a predetermined level, pressure or quantity. Where appropriate, locking devices and caps or covers are to be removed. Orifices and drains are to be cleared of obstructions, the correct material is then added to the container as directed. Finally, having made sure that gaskets and caps or covers are free from damage, caps or covers and locking devices are to be installed again.
Test [Do the (Specify) Test]
Using any necessary test equipment, do the procedure whereby an object or system is operated, or its function measured, to verify that its performance is to the specified standard. If the item or system is found to be unserviceable the supervisor is to be informed. Remedial action is not to be done unless directed.
