The variometer itself does not require any further maintenance, since a regular leak test of the instrumentation is normally required as part of the maintenance program (IHP/AMP) of the aircraft. This is usually to be carried out at least once a year. This also covers the test of the variometer. Of course, a test is carried out in the factory, but this does not include the instrument hoses on the aircraft, as well as their aging and the aging of O-rings in the variometer itself. If the test for leaks is missing in the program, a corresponding supplement should be made.

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