EDTO

Question 1

What’s the regulation?

Answer 1

An airplane with 2 turbine power units shall not be operated on a route where the flight time at single engine cruise speed to an adequate en route altérnate airport exceeds 60 minutes under wind calm condition, unless the operation has been approved by CAA.

For more than 2 engine aircraft, 180 minutes

Question 2

EDTO area of operation

Answer 2

The EDTO ENTRY POINT is the first point located on the outbound route at more than 1 hour flying time, at the approved 1 engine inop cruise speed under standard conditions in still air, from the last adequate airport prior to entering the EDTO segment.

It marks the beginning of the EDTO segment.

The EDTO EXIT POINT is the last point in the route that exceeds the EDTO threshold and it is the end of the EDTO segment. An EDTO route may contain more than one EDTO segments.

Question 3

After passing EDTO entry point, the alternate becomes unavailable. What should the pilot do?

Answer 3

An operator is NOT required to turn back once the flight has gone beyond the ETOPS ENTRY POINT if an unexpected worsening of weather at the designated ETOPS alternate airport drops below minima (or any event occurs that renders the airport unusable).

The FAA requires that the PIC, in coordination with the dispatcher if appropriate, will exercise judgement in evaluating the situation and make decision as to the safest course of action. This may be a turn back, re touting to another ETOPS alternate airport, or continuing on planned route.

Question 4

RFFS requirement

Answer 4

-Up to 180min EDTO, with category 4 or equivalent

-Greater than 180min EDTO (including 207min EDTO), with ICAO category 4. In addition, the airplane must remain within the EDTO authorized diversion time from an adequate airport that has RFFS EQUIVALENT to that specified by ICAO category 7, or higher.
- For RFFS not located at the airport, they must be within 30 minute response time.

Question 5

Critical point

Answer 5

The point along the route at which the required EDTO diversion fuel is the closest to, or exceeds the most, the normal planned fuel onboard.

In the case that normal planned fuel on board is less than required EDTO diversion fuel at critical point, fuel uplifts is required, so called critical fuel.

Question 6

What is an EDTO critical fuel scenario?

Question 7

Determining icing conditions

Question 8

Passenger recovery plan