Start a conversation Sign in
Start a conversation
  1. flydocs
  2. Aviation Definitions
  3. C

CSI - Cycles Since Installation

CSI
 Cycles Since Installation. Expressed in Flight Cycles from Installation.

For Components, Landing Gear and Engines will usually be Aircraft Flight Cycles.

For APU should be APU Cycles, caution should be taken on such data to confirm it is expressed in APU Cycles as the Operators system will usually collect Aircraft Flight Cycles which will require correction by an agreed formulae for older Aircraft or collected from the APU Digital Monitoring Unit (DMU) for newer Aircraft.

Note:
Engine Cycles may differ from Aircraft Flight Cycles when correction is made due to operating the Engine at a different Thrust (Power) Rating.

Note:
Landing Gear Cycles for Life Limited Parts may differ from the Aircraft Flight Cycles when correction is made due to the Landing Gear being operated at different Aircraft Operating Weights.

Note:
Where the Component is part of an Assembly the Installation Date will depend on the practice of the Operator. It may be the Installation Date for the Component to the Assembly, or the Installation Date of the Assembly to the Aircraft.
Choose files or drag and drop files
Was this article helpful?
Yes
No

  1. Lauren Partridge

  2. Posted

Comments