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Extended Diversion Time Operations EDTO

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'Any flight by an aeroplane where the flight time at the one engine inoperative ... Proposed for two, three and four engine aeroplanes ... – PowerPoint PPT presentation

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Title: Extended Diversion Time Operations EDTO


1
Extended Diversion Time Operations (EDTO)
  • Status Report

2
Extended Diversion Time OperationsDefinition
  • Any flight by an aeroplane where the flight time
    at the one engine inoperative cruise speed (in
    ISA and still air conditions), from a point on
    the route to an adequate alternate aerodrome, is
    greater than the threshold time approved by the
    State of the Operator or any flight operated in
    an area designated by the State of the Operator
    as an area of extended diversion time
    applicability

3
Extended Diversion Time Operations (EDTO)
  • Not the same as long range operation or
    ultra-long range operation
  • Proposed for two, three and four engine
    aeroplanes
  • Would place additional requirements on three and
    four engine aeroplanes involved in EDTO such as
    cargo compartment fire suppression and
    maintenance requirements

4
Issue and Terminology
  • The problem is the length of the diversion, not
    the length of the flight in the event of a
    primary system or propulsion system failure
  • ETOPS and LROPS do not describe the nature of the
    operation
  • Extended Diversion Time Operations is considered
    more descriptive of the issue at hand

5
History
  • EDTO provisions first proposed by Operations
    Technical Panel (OPSP/6) in 2003
  • Reviewed by ANC
  • Proposal sent back to OPSP
  • OPSP/7 refined the maintenance provisions for
    aeroplanes with more than 2 engines on EDTO
  • Preliminary review by ANC and sent to States for
    comments in September 2007

6
Consultation with States and International
Organizations
  • States had fundamental difficulties with many
    provisions
  • Probable cause proposal derived from existing
    ETOPS provisions extended to aeroplanes with more
    than 2 engines
  • A new approach to Extended Diversion Times
    Operations for all aeroplanes, with any number of
    engines, is needed

7
The Way Forward for a New EDTO Concept
  • New group formed by ICAO Special Operations Task
    Force Identify the safety issues
  • SOTF Membership Stakeholders involved in such
    operations 5 States, operators as advisors,
    IATA, IFALPA, EASA, ICCAIA, OPSP Airworthiness
    Panel members
  • Start with a clean sheet of paper, but consider
    the work done and comments from States

8
Timeline
  • Meet in the fall 2008
  • Complete provisions in 2009
  • Applicable in 2010 at the earliest

9
  • Thank You
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