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OPS-A HONG KONG EXPRESS > FUEL/OIL POLICY > Flashcards

FUEL/OIL POLICY Flashcards

1
Q

What does the fuel schedule at HKE look like?

A

Taxi Fuel
Trip Fuel
Contingency Fuel
Destination Holding Fuel
Additional Fuel
Alternate Fuel
Final Reserve Fuel
=FUEL REQUIRED
+Extra Fuel
+Tankering Fuel
+Discretionary Fuel
=TOTAL FUEL

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2
Q

What is included in Taxi Fuel?

A

APU usage
Engine start
Taxi for departure

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3
Q

What is standard taxi fuel for the A320 and A321?

A

200 kg

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4
Q

How is Contingency fuel derived?

A

Higher of:
- 5% of trip fuel or
- 5 min holding at 1500 ft above destination in
standard conditions

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5
Q

How much extra fuel is normally added to the OFP and what is it called?

A

15 min
Destination Holding Fuel

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6
Q

What would be the reason for the company to add 30 min of extra fuel?

A

If certain conditions exists at destination at ETA +- 1h:

  • Weather forecasted to be close to or
    below landing minima including
    TEMPO conditions
  • Wind over crosswind limits
  • TS with FEW CB forcasted at
    destination including TEMPO
    conditions
  • ATS procedures, restrictions or delays
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7
Q

Is DEST HOLD fuel a legal requirement to carry?

A

No

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8
Q

What is the limitation on how much fuel we can use for fuel tankering?

A

MLW -500kg

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9
Q

What is a “Re-clearance” procedure in regards to fuel procedures?

A

Flight can be dispatched with another airport as destination and then be re-cleared in flight to possibly continue to original destination if fuel onboard is sufficient. Otherwise we divert to the “new” destination

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10
Q

Define “Fuel Required”

A
  • Taxi
  • Trip Fuel
  • Contingency
  • Dest Hold
  • Additional
  • Alternate
  • Reserve
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11
Q

Define “Total Fuel”?

A

Fuel Required + Tankering + Extra

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12
Q

What is the fuel expected at the MAP of the intended destination?

A

CMR (Company Mandatory Fuel)
- Fuel required to chosen alternate
- 5% contingency fuel applicable to the above
- Final Reserve

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13
Q

Define “Taxi Fuel”
and
How much fuel is it?

A
  • APU usage
  • Engine start
  • Taxi for departure

It is 200 kg for both A320 and A321

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14
Q

Can taxi fuel be varied by the Commander?

A

Yes

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15
Q

Define “Trip Fuel”

A

Fuel from take-off to landing at destination

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16
Q

What figure is Trip Fuel based upon?

A

The planned ZFW

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17
Q

Define “Contingency Fuel”

A

Fuel required to compensate for unforeseen factors which could influence fuel consumption to the destination

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18
Q

How is Contingency Fuel calculated?

A
  • 5% of planned trip fuel or
  • 5 min holding at 1500 ft at destination
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19
Q

Define “Destination Hold Fuel”

A

Extra fuel to cater for expected ATC or weather delays at the destination

15 min is normally always added to the FPL

30 min is added if certain conditions exists +-1h of the ETA:
- Weather forecasted to be close to minima
- Forecast X-wind is above limitations
- TS with FEW CB are forecasted, including TEMPO

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20
Q

If the Commander wants more extra fuel, is that added to Dest Hold fuel?

A

No, it will be added as Extra Fuel

21
Q

Is Dest Hold legally required fuel?

A

No, the Commander can choose to take it off the FPL

22
Q

Define “Additional Fuel”

A

Fuel required if fuel load is not sufficient to:
- allow the aircraft to descend as necessary and proceed to an alternate in the event of engine failure or loss of pressurization and
- having 15 min holding fuel and make an approach and landing

23
Q

Define “Alternate Fuel”

A

Fuel from Missed Approach, flight to alternate, descent and landing + 5% Contingency

24
Q

What “Fuel Schedule” is Alternate Fuel calculated from

A

Long Range Cruise (LRC)

25
Q

Define “Reserve Fuel”

A

Fuel to fly for 30 min at holding speed at 1500 ft

26
Q

Above what value of fuel discrepancy to we have to start looking into it?

A

Above 400 kg discrepancy

27
Q

Define CMR in regard to fuel?

A

CMR (Company Mandatory Fuel)
- Fuel required to chosen alternate
- 5% contingency fuel applicable to the above
- Final Reserve

28
Q

If, in-flight, it becomes clear that you will arrive at destination with less than the required CMR. What procedure can be implemented?

A

We can continue provided:
- Fuel remaining is not less than Final Reserve
- There are two separate runways
- No delays
- Weather is better than the alternate planning
minima for the non-precision approach aid with
the higher minima serving the two runways
being considered
- Cross wind is within limits

29
Q

If, during descent, it becomes clear that you will arrive at destination with less than the required CMR. What procedure can be implemented?

A

Flight may continue if fuel remaining on landing is equal to Final Reserve

30
Q

What number should tankering be limited to?

A

MLW -500kg

31
Q

When should tankering not be considered?

A

Destination runway have:
- Standing Water
- Slush
- Snow
- Ice

32
Q

What formulas can be used to calculate Maximum allowable Fuel at Departure?

A

1 Based on Max Landing Weight
MLW - 500 kg - ZFW + Taxi Fuel + Trip Fuel

2 Based on Max Take Off Weight
MTOW - ZFW + Taxi Fuel

33
Q

What is formula can be used to estimate Fuel Tankering?

A

1st Sector Taxi Fuel +
1st Sector Trip Fuel +
1st Sector Taxi In/APU usage +
2nd Sector Block Fuel

34
Q

What is the minimum oil quantity for the IAE engines?

A

11 qt + 0,3 qt/h

35
Q

What is the minimum oil quantity for the PW engines?

A

14 qt

36
Q

What is the minimum oil quantity for the LEAP engines?

A

10,6 qt or
8,9 + estimated consumption (0,45 qt/h)

37
Q

When do we start investigating fuel uplift discrepancies?

A

When difference is 400 kg or above

38
Q

What is the max allowed imbalance between the inner fuel tanks and the outer fuel tanks on the A320?

A

Inner tanks limit = 500 kg
Outer tanks limit = 370 kg

39
Q

What is the max allowed imbalance between the fuel tanks on the A321?

A

400 kg

40
Q

What the difference achieved by inserting CI = 0 compared to CI = 999?

A

CI = 0 gives maximum range
CI= 1 gives minimum time

41
Q

What can be done to increase fuel temperature?
What are the temperature increase effects of these actions?

A
  1. Descend or divert to a warmer airmass. 4000 ft
    descent gives as 7 deg C increase in TAT
  2. Increase Mach nr. An increase of M 0,01 gives
    approximately 0,7 deg C increase in TAT
42
Q

Is a FLEX or TOGA takeoff preferred when it comes to minimize fuel consumption?

A

TOGA is preferred as the take off phase becomes shorter

43
Q

Does turing off one pack after start burn more or less fuel?

A

It burns more

44
Q

How often do we have to perform fuel checks?

A

At least every 30 min

45
Q

What actions can be done to make fuel last longer when getting close to min fuel?

A
  • Fly MRC speed by setting CI to 0
  • Obtain more direct routings
  • Fly a more optimum flight level
  • Select as closer suitable alternate
46
Q

What does the term “MINIMUM FUEL” mean?

A

Informs ATC that all planned airport options have been reduced to a specific airport and any change to the existing clearance may result in landing with less than the planned final reserve fuel

47
Q

When should a pilot declare “MAYDAY MAYDAY MAYDAY FUEL”?

A

When the calculated usable fuel to be available upon landing at the nearest airport where a safe landing can be made is less than the planned final reserve

48
Q

What is the minimum fuel for take-off?

A

1500 kg

49
Q

How can we try to get away with a lower value of Contingency Fuel?

A

By using an ERA. Instead of 5% of trip fuel we can use 5% of fuel required from overhead or abeam the ERA.
Then take the higher of the new 5% or 5 min hold @ destination

OPS-A HONG KONG EXPRESS (51 decks)

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