Aircraft Maintenance Metrics II
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Questions and Answers

What is the formula to calculate Aircraft Availability rate?

  • Total time possessed minus depot possessed, NMCM, NMCS, NMCB, and UPNR (correct)
  • Total possessed minus depot possessed and NMCM
  • MC possessed codes plus depot possessed codes
  • TAI divided by total possessed codes
  • What is the term for introducing intentional turbulence to avoid additional turbulence later?

  • Smart management (correct)
  • Planned turbulence
  • Intelligent scheduling
  • Needless turbulence
  • Where can the definitions of possessed codes be found?

  • AFI 21-103 (correct)
  • AFI 21-101
  • AFI 21-100
  • AFI 21-105
  • What is the significance of 'plan what you fly and fly what you plan' in flying schedule guidance?

    <p>It stresses the importance of planning and executing the flying schedule</p> Signup and view all the answers

    What is the purpose of evaluating causes of turbulence in the flying schedule?

    <p>To identify areas for improvement in operations and maintenance</p> Signup and view all the answers

    What may be affecting the operation if the unit isn’t meeting the sortie UTE rate?

    <p>All of the above</p> Signup and view all the answers

    What can a high abort rate drive down?

    <p>FSE rate</p> Signup and view all the answers

    What does the break rate indicate?

    <p>All of the above</p> Signup and view all the answers

    What is the traditional yardstick for measuring a unit’s performance?

    <p>MC rate</p> Signup and view all the answers

    What may indicate a unit is experiencing serious parts supportability issues?

    <p>A low MC rate</p> Signup and view all the answers

    What is the primary driver of the TNMCS rate?

    <p>Spare parts availability</p> Signup and view all the answers

    What is the focus of the 4-/8-/12-hour fix rates?

    <p>Examining the repair process management</p> Signup and view all the answers

    What may indicate a lack of thorough troubleshooting or inordinate pressure to commit aircraft to the flying schedule?

    <p>A high R/R rate</p> Signup and view all the answers

    What is the relationship between the R/R rate, break rate, and fix rate to NMCM?

    <p>A strong correlation between the three rates may indicate problems</p> Signup and view all the answers

    What is the key to minimizing downtime according to the TNMCM rate?

    <p>All of the above</p> Signup and view all the answers

    What does a low MSE rate indicate about a unit?

    <p>That the unit is experiencing turbulence</p> Signup and view all the answers

    What is the purpose of a unit's aggressive follow-up program for AWP deferred discrepancies?

    <p>To keep visibility on parts ordered for AWP deferred discrepancies</p> Signup and view all the answers

    What is the goal of maintenance schedulers regarding AWM deferred discrepancies?

    <p>To keep the AWM rate as low as possible</p> Signup and view all the answers

    What is a common reason for a CANN action to take place?

    <p>When base supply cannot deliver the part when needed</p> Signup and view all the answers

    What is included in the CANN rate measurement?

    <p>All aircraft-to-aircraft and engine-to-aircraft CANN actions</p> Signup and view all the answers

    What is the consequence of not scheduling maintenance with a more extensive maintenance action?

    <p>The aircraft will be scheduled down for a day</p> Signup and view all the answers

    What is the relationship between the CANN rate and depot support?

    <p>The CANN rate is an indicator of depot support</p> Signup and view all the answers

    A high Aircraft Availability rate indicates that the maintenance group is unable to provide sufficient aircraft to accomplish mission requirements.

    <p>False</p> Signup and view all the answers

    The FSE rate measures the percentage of a fleet’s total active inventory that is available for flying.

    <p>False</p> Signup and view all the answers

    Introducing intentional turbulence to avoid additional turbulence later is a bad management practice.

    <p>False</p> Signup and view all the answers

    A low FSE rate may indicate that the unit has planned well and executed the schedule.

    <p>False</p> Signup and view all the answers

    The Aircraft Availability rate is calculated by dividing the total time possessed by the depot possessed time.

    <p>False</p> Signup and view all the answers

    Sticking to the printed flying schedule reduces personnel tension and allows for a better maintenance product.

    <p>True</p> Signup and view all the answers

    Definitions of possessed codes can be found in AFI 21-103.

    <p>True</p> Signup and view all the answers

    NMCM, NMCS, NMCB, and UPNR are types of possessed codes used in calculating Aircraft Availability.

    <p>True</p> Signup and view all the answers

    A Code 3 break rate is an indicator of aircraft system reliability and maintenance quality.

    <p>True</p> Signup and view all the answers

    Maintenance scheduling practices can affect the sortie UTE rate.

    <p>True</p> Signup and view all the answers

    Operations and maintenance share the sortie UTE rate as an indicator of their combined performance.

    <p>False</p> Signup and view all the answers

    The break rate is an excellent predictor of parts demand.

    <p>True</p> Signup and view all the answers

    The TNMCM rate is primarily driven by spare parts availability.

    <p>False</p> Signup and view all the answers

    The TNMCM rate is only used to measure the quality of maintenance performed in a unit.

    <p>False</p> Signup and view all the answers

    Maintenance should schedule flying first and then support maintenance with the remaining aircraft available.

    <p>False</p> Signup and view all the answers

    Awaiting Maintenance and Awaiting Parts are two categories of deferred discrepancies that can be resolved during a phase inspection.

    <p>True</p> Signup and view all the answers

    The CANN rate measures the number of airframes out for parts.

    <p>True</p> Signup and view all the answers

    A high CANN rate is desirable as it indicates efficient use of resources.

    <p>False</p> Signup and view all the answers

    A unit can delay resolution of AWP deferred discrepancies indefinitely.

    <p>False</p> Signup and view all the answers

    The 12-Hour Fix Rate is only applicable to fighter aircraft.

    <p>False</p> Signup and view all the answers

    Maintenance schedulers can schedule an aircraft down for a week to work deferred discrepancies.

    <p>False</p> Signup and view all the answers

    Supply relies on maintenance for replenishment.

    <p>False</p> Signup and view all the answers

    Maintenance missing a scheduled action because an aircraft is pulled to support the flying program is an unreasonable occurrence.

    <p>False</p> Signup and view all the answers

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