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QF A380 FG > A380 - EDTO > Flashcards

A380 - EDTO Flashcards

1
Q

What does EDTO stand for?

A

Extended Diversion Time Operations

Introduced by ICAO in 2012 to reflect modern safety considerations for transport-category turbine-engine aircraft.

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2
Q

What is the primary regulation governing EDTO?

A

CASR Part 121 Manual of Standards (MOS)

Includes Chapter 2 for EDTO and Chapter 4 for Flight Preparation.

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3
Q

What is the EDTO threshold time for the A380?

A

180 minutes (1500nm)

A flight exceeding this time/distance to an Adequate Airport must be conducted as an EDTO.

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4
Q

When was ETOPS introduced and what does it stand for?

A

Introduced in 1985, Extended Range Twin-Engine Operations

Allowed twin-engine aircraft to operate more than 60 minutes from an alternate airport.

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5
Q

What are the key requirements for EDTO approval?

A
  • Electrical power redundancy (min 3 gens)
  • APU cold soak start capability (for twins)
  • Cargo compartment fire suppression
  • Communication redundancies
  • System redundancy
  • Icing protection
  • MEL limitations for EDTO

These requirements ensure safety during extended operations.

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6
Q

True or False: The term EDTO has been universally adopted by all states.

A

False

Not all states have adopted the term EDTO; some still use ETOPS.

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7
Q

What is the maximum diversion time for an A380 in EDTO operations?

A

275 minutes

This is derived from the cargo compartment fire suppression system endurance of 290 minutes, less 15 minutes.

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8
Q

What does the acronym EEP refer to in EDTO?

A

Entry Point

The point where the aircraft exceeds the EDTO threshold time.

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9
Q

What is the purpose of the EDTO Alternate?

A

To provide an Adequate Airport forecasted to meet defined weather criteria

It must be available within specified time frames for EDTO operations.

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10
Q

What does the term CPE refer to in the context of EDTO?

A

Critical Point EDTO

The most fuel-critical Estimated Time of Arrival (ETA) between any two EDTO Alternates.

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11
Q

Fill in the blank: The EDTO segment extends from the __________ to the __________.

A

EEP, EXP

EEP is the point where the aircraft exceeds the EDTO threshold, and EXP is the point from which the aircraft remains within the EDTO threshold time.

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12
Q

What is required for the A380’s critical scenario during EDTO operations?

A

One Engine Inoperative (OEI) plus depressurisation

This scenario is critical for calculating EDTO fuel requirements.

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13
Q

What does the term LROPS stand for?

A

Long Range Operations

Adopted by EASA for three and four-engine aircraft.

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14
Q

What factors are considered in EDTO weather assessment?

A
  • Forecast ceiling
  • Visibility
  • Crosswind (for OEI)

These factors are evaluated during preflight and inflight assessments.

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15
Q

What is the significance of the term ‘Adequate Airport’ in EDTO?

A

Refers to airports that meet defined criteria for supporting EDTO operations

Includes Category A, B, or C airports.

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16
Q

What is the maximum holding fuel time for EDTO?

A

15 minutes

17
Q

What critical scenario applies to the A380 during EDTO?

A

One Engine Inoperative and Depressurised

18
Q

What factors are applied to the CPE calculation for EDTO?

A

Forecast wind and temperature, plus a 5% wind factor

19
Q

What indicates that an aircraft is approved for 275 minutes EDTO?

A

A ‘Y’ in the ER box of the Tech Log

20
Q

What does ‘N’ indicate in the ER box of the Tech Log?

A

Non-EDTO (limited to 180 minutes)

21
Q

What does the EDTO Data page in EFF+ provide to the crew inflight?

A

Situational awareness related to EDTO area and maximum diversion time

22
Q

What are the maximum diversion times for EDTO?

A

(180/275) minutes

23
Q

What must be ensured prior to passing the EEP?

A

Two-way comms with ATC and Flight Dispatch, Inflight Fuel Requirements met, significant system failures reviewed

24
Q

What should be assessed prior to passing the EEP?

A

EDTO Alternate usability and weather

25
Q

What indicates a significant system failure during EDTO?

A

A ‘LAND ASAP’ ECAM

26
Q

What is the requirement for landing after a significant system failure in EDTO?

A

Land at a Category A, B, or C airport within the defined EDTO Maximum Diversion Time

27
Q

What are the three EDTO diversion strategies available for the A380?

A
  • Time Strategy
  • Obstacle Strategy
  • Fuel Strategy
28
Q

What is the focus of the Time Strategy in EDTO diversion?

A

Minimizes fuel burn but increases diversion time

29
Q

What is a caution when entering an ATS WPT in the Active Route?

A

It may cause problems with CPDLC/ADS route data to ATC

30
Q

What is the requirement for flight time to the landing airport during EDTO?

A

Must not exceed the flight time to the nearest suitable airport unless deemed safer

31
Q

What are the suggested references for crew before operating a Polar flight?

A
  • CASR Part 121 MOS 2.08
  • FAM > POLAR OPS 15.13
  • RMS > POLAR REGIONS 4.3.3
  • FCOM > Aircraft Systems (FMS, CDS, Surveillance)
32
Q

What does the ‘Land ASAP’ ECAM indicate?

A

A time-critical situation requiring immediate landing planning

33
Q

What are the altitude profiles during the EDTO diversion strategies?

A
  • Descent (Standard or Obstacle)
  • Cruise up to VMO/MMO
  • Descent to land up to VMO/MMO
34
Q

What is the significance of the EDTO entry and exit points?

A

They may be entered as Waypoints or a Fix in the FMS

35
Q

What is the maximum diversion time for aircraft dispatched on EDTO?

A

275 minutes

36
Q

What does the EDTO Data page assist with inflight?

A

Providing situational awareness for planned alternate airports

37
Q

What must be reviewed before proceeding past the EEP?

A

NOTAMS and messages from relevant EDTO Alternates

38
Q

Fill in the blank: EDTO applies when more than _______S or _______N.

A

60°S or 78°N

QF A380 FG (10 decks)

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