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  • Using a borescope is an effective way to inspect and monitor the condition of the hot section both on a periodic basis and when following up on any previous finding.

  • Many maintainers possess borescope or can obtain the as required for such work, on the PT6 engine borescope inspection interval often coincide with Fuelnozzle inspection as the removal of the nozzle allows easy to access to the hot section.
  • these intervals are set out in the engine maintenance manual, A borescope consists of video scope or an optical fiberscope that enables the operator to examine the internal areas of the engine without having to remove or disassemble it.
  • the borescope assembly comprises a  guide tube, videoscope or fiberscope adapter and etc.
  • some borescope can measure component conditions which are to be monitored per engine maintenance manual recommendations.

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