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22 Cards in this Set
- Front
- Back
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EMI definition |
Is any electrical or electronic disturbance, phenomenon, signal, or emission which cause undesirable responses, malfunctions, or degradation of system performance in systems or equipment. |
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EMI TRIANGLE |
Source (Natural or Man made) Victim (The equipment effected) Coupling path (radiated or conducted or a combo of both) |
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Natural Sources |
*Cosmic/Solar/Galaxy radiation *Lightning *Precipitation Static *Electrostatic Discharge (ESD) |
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Man Made Sources |
Incidental EMI - not designed to make energy Functional EMI- designed to make electricity Airframe Generated EMI- Combo of both |
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Coupling Path |
Means by which EMI reaches the suseptable equipment |
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Preventing or Controlling EMI |
Grounding Bonding Shielding Filtering |
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3 Examples of Equipment that could be effected |
Flight controls Radar Air-conditioning (valves and sensors) |
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Report EMI to which two people? |
Maintenance control Quality assurance |
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ESD definition |
Transfer of electrostatic charge between bodies at different electrostatic potentials cause by direct contact or induced in a electrostatic field. |
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Causes of ESD |
Prime generators (all plastics) Common sources - work surfaces, floors, clothes, chairs, packing and handling materials. |
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Dangers of ESD |
*Mild shock to personnel *Severe damage to equipment such as integrated circuits and discrete semiconductor devices *Degradation of components *Damage to portions resulting in reduced performance |
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ESD protection devices |
*wrist ground probes *ground probes *grounded equipment and work benches |
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What is FOD |
Loose objects and debris that may cause damage to aircraft, engines, support equipment and other aeronautical equipment |
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Primary causes of FOD |
Poor housekeeping Poor maintenance Everyday carelessness |
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FOD program |
Establishes policy, responsibility, and requirements to prevent damage to aircraft, engines, etc |
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FOD reporting procedures |
Require that all FOD hazards be reported to the FOD prevention officer |
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Who is responsible to FOD prevention |
It is a all hands effort |
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Tool control program (TCP) purpose |
Designed to help reduce the number of aircraft incidents and accident by using the CONCEPT of instant tool inventory |
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Advantages of TCP |
*Reduces initial outfitting and tool replacement cost *Reduces theft *reduces inventory time *ensures proper tools are available |
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Material control officer's responsibilities |
Develop and maintain the TCP Monitor and approves all tool requisitions |
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Responsibility of Quality Assurance (QA) |
*Audits tool control procedures *Conducts inventories *Coordinates the investigation for lost or missing tools *Spot-checks tool containers in use |
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Responsibilities of mechanic |
*Beginning of shift *Prior to starting work *Work stoppage *Completion of work *Operational checks *End of shift |
