| TSO Time Since Overhaul. Expressed in Hours. (From new if not previously Overhauled) For Components, Landing Gear and Engines will usually be Aircraft Flight Hours. For APU should be APU Hours, caution should be taken on such data to confirm it is expressed in APU Hours as the Operators system will usually collect Aircraft Flight Hours which will require correction by an agreed formulae for older Aircraft or collected from the APU Digital Monitoring Unit (DMU) for newer Aircraft. Note: Landing Gear Hours for Life Limited Parts may differ from the Aircraft Flight Hours when correction is made due to the Landing Gear being operated at different Aircraft Operating Weights. |
Lauren Partridge
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