CS 25.1167 Accessory gearboxes
ED Decision 2003/2/RM
For aeroplanes equipped with an accessory gearbox that is not certificated as part of an engine –
(a) The engine with gearbox and connecting transmissions and shafts attached must be subjected to the test specified in CS-E 160 and CS-E 740, as applicable.
(b) The accessory gearbox must meet the requirements of CS-E 80 and CS-E 590, as applicable; and
(c) Possible misalignments and torsional loadings of the gearbox, transmission, and shaft system, expected to result under normal operating conditions must be evaluated.
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