Code of Federal Regulations (Last Updated: April 5, 2024) |
Title 14 - Aeronautics and Space |
Chapter I - Federal Aviation Administration, Department of Transportation |
SubChapter C - Aircraft |
Part 25 - Airworthiness Standards: Transport Category Airplanes |
Subpart E - Powerplant |
Powerplant Controls and Accessories |
§ 25.1167 - Accessory gearboxes.
Latest version.
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§ 25.1167 Accessory gearboxes.
For airplanes 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 tests specified in § 33.49 or § 33.87 of this chapter, as applicable;
(b) The accessory gearbox must meet the requirements of §§ 33.25 and 33.53 or 33.91 of this chapter, 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.
[Amdt. 25-38, 41 FR 55467, Dec. 20, 1976]