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EXPORT CLASSIFICATION

EXPORT CLASSIFICATION. PROPRIETARY NOTICE

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EXPORT CLASSIFICATION

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  1. EXPORT CLASSIFICATION PROPRIETARY NOTICE This document is the property of Pratt & Whitney Canada Corp. (“P&WC”). You may not possess, use, copy or disclose this document or any information in it, for any purpose, including without limitation to design, manufacture, or repair parts, or obtain TCCA, FAA, or other government approval to do so, without P&WC's express written permission. Neither receipt nor possession of this document alone, from any source, constitutes such permission. Possession, use, copying or disclosure by anyone without P&WC's express written permission is not authorized and may result in criminal or civil liability. Export Classification: No Technical Data P&WC Proprietary Information

  2. PT6 Engine DevelopmentPT6A Highlights (as of Q3 2013) Total Produced42,718 Flying Population~22,332 Certified PT6A Models 70 Total hours flown 347.87 Million Hrs. High Time Engine51,501 (PT6A-28) Highest TBO13,000 (PT6A-67D) P&WC Proprietary Information Export Classification: No Technical Data

  3. PT6A Engine ReliabilityTerminology Key Rates BIFSD (Basic In Flight Shut Down) BUR (Basic Unplanned Removal) “Basic” – event can be directly linked to the engine design or manufacture “Non-Basic” – event cannot be linked to the engine design or manufacture (e.g. weather, pilot induced, etc.) Standard is to use 06 month rolling average # events / 06 month fleet running time P&WC Proprietary Information Export Classification: No Technical Data

  4. PT6A-34Global Activity and Reliability • Entered into service : 1966 • Flying population : 669 • Fleet hours : 20.9 Mil • Fleet hours per year + 450000 Hrs • High time engine: 42,412 Hrs • Number of operators: 274 • Basic TBO 4000 • High Time TBO 8000 • Basic Unplanned Removal 0.008 • Basic In-flight Shutdown 0.004 • Total In-flight Shutdown 0.004 P&WC Proprietary Information Export Classification: No Technical Data

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