EDTO/ETOPS Flashcards
What is the difference between EDTO and ETOPS?
ETOPS applies only to twin engine aircraft while EDTO applies to all aircrafts
What does “EDTO” stand for?
Extended Diversion Time Operation
What year did ETOPS officially start?
1985
When is EDTO rules active?
From brake release
What is the definition of an EDTO segment?
Flights conducted more than the Rule Distance (456 nm) from an adequate airport
Rule Distance for twins are 60 min converted to time
Define “Adequate Airport”?
Sufficient:
LDA
ATC
Lighting
Wx reporting
1 nav aid or RNAV
RFF services
When is “Rule Time” used and when is “Rule Distance” used?
Rule Time is used for planning while Rule Distance is used for in-flight operational use
What Rule Time is the B777-300ER certified for?
60 min
120 min
180 min
207 min
What is the Rule Distances for the respective Rule Times?
60 min = 456 nm
120 min = 880 nm
180 min = 1327 nm
207 min = 1524 nm
What speed is used to calculate Rule Distances?
MMO/VMO -10 kts
What is needed to nominate an airport as an EDTO ERA?
Has to be an Adequate airport with Wx reports saying that the weather is above alternate landing minima and below crosswind limitations at the intended time of operation
The EDTO ERA also has to have ATC service and at least one instrument approach procedure
What kind of MELs can affect EDTO capability?
PADD:s
What do you have to check prior to entering an EDTO segment?
Check weather at ERA:s
Check crosswind limits
What do you do if the weather at an ERA goes below minima prior to entering an EDTO segment?
Select another alternate airport
If that is not possible you may not enter the EDTO segment
What is your action if an ERA becomes unavailable when within an EDTO segment?
Try to select another alternate to support the route segment. Normally remain on planned route and find the nearest suitable ERA along the route, could be previous or next one.
On the CFP, what does the following ETDO codes mean?
nnnETOPE
nnnETOPD
nnnEDTO
nnnETOPx
nnnETOPE = 180ETOPE = One engine depressurised
nnnETOPD = 180ETOPD = All engines depressurised
nnnEDTO = All engines
nnnETOPx = 180ETOP2 = Additional percentage in critical fuel for a MEL requirement
On the CFP EDTO Sector Fuel Summary, what does the Fuel required figure mean?
Fuel required for normal operation up to the specified CP, suffer a failure, descend and then divert to either of the selected airports
On the CFP EDTO Sector Fuel Summary, what does the DIV fuel figure mean?
Fuel required from the EDTO CP to:
- Cruise to the ERA with 5% contingency fuel included
- Make an approach and landing
- Additional fuel for severe icing and APU burn-off
- Land with 15 min of reserve fuel
In what 3 ways can an EDTO verification flight be done?
- A non-EDTO flight, may be normal revenue flight
- Non revenue flight such as a test- or ferry flight
- Initial segment of an EDTO flight but prior to entering any EDTO segment.
The initial segment must be minimum 90 min after departure and prior to the EDTO entry point.
How do you know that an EDTO verification flight is needed?
The words “EDTO Verification Flight Required” will be entered in the AML
What is to be done when the 90min verification time has elapsed?
Contact Maintenance Control via ACARS
What shall the PIC do after a EDTO verification flight is completed?
Write in AML “EDTO verification flight completed - Satisfactory”
Engineering will clear the PADD based on this statement
What are your considerations planning wise for a verification flight?
Have a second CFP which is non-EDTO and have sufficient fuel for that second CFP
