Part 121 (Australian Air Transport Operations—Larger Aeroplanes) Manual of Standards 2020
Chapter 2—Extended diversion time operatChapter 2—Extended diversion time operations (EDTO)
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Chapter 2—Extended diversion time operations (EDTO)
Division 1—Criteria for the grant of EDTO approval
2.01 Scope of Division 1, Chapter 2
This Division: (a) is made under paragraph 121.035(2)(a) of CASR; and (b) prescribes the criteria for an approval to fly an aeroplane in extended diversion time operations.
2.02 Turbine-engine aeroplanes
The aeroplane must be a turbine-engine aeroplane.
2.03 Type design and certification documents
(1) This section applies if the airworthiness standards for an aeroplane require the type design of the aeroplane to be approved for the conduct of extended diversion time operations with the diversion time limit requested by the aeroplane operator in an application for EDTO approval. (2) The type design of the aeroplane must be approved for extended diversion time operations with at least the diversion time limit requested by the operator, as evidenced in any of the following documents for the aeroplane: (a) the flight manual; (b) the type certificate data sheet or a supplement to the sheet; (c) the CMP document. (3) The following information about the aeroplane, its airframe/engine combination, and extended diversion time operations, must be contained in at least one of the documents mentioned in subsection (2): (a) any special limitations, including any limitations associated with operation of the aeroplane up to the diversion time limit requested; (b) the equipment and flight crew procedures required for the conduct of an EDTO with the diversion time limit requested; (c) the diversion time capability of the aeroplane as limited by any time‑limited system for the aeroplane.
2.04 Capability of aeroplane for EDTO—general
CASA must be satisfied of the following matters in relation to an application for EDTO approval: (a) the reliability of the airframe/engine combination of the aeroplane must be acceptable for extended diversion time operations, within the diversion time requested by the operator for the operations;