Past questions Flashcards
When can you descend below MSA?
IFR and under positive radar control. Can descend to minimum radar vectoring altitude
When established on approved approach or holding procedure
When conducting visual manoeuvre
What’s the difference between CEO and NEO fuel system?
CEO:
6 main fuel pumps
Center tank has fuel pumps, with associated pb on overhead panel. When all pumps on, center pumps preferentially supply engine over wing pumps.
NEO:
4 main fuel pumps
FLSCU controls transfer valve. When valve open, file from inner tank pump flows through jet pump - creates suction moving fuel from center to related inner tank.
CEO: fuel pumped from center tank to engine. NEO: fuel transferred from center tank to inner tank.
Minimum Fuel
All planned aerodrome options have been reduced to a specific aerodrome of intended landing.
Any change to the existing clearance may result in landing with less than the planned Final Reserve.
This is not an emergency situation but an indication that an emergency situation is possible, should any additional delay occur - no priority handling.
Fire Loops. How many and how do they work?
The engines and APU each have a fire and overheat detection system consisting of:
Two identical detection loops (A & B)
Fire Detection Unit
When both loops detect heat, fire warning.
If one loop has a fault, fire warning when just the remaining loop detects heat.
Also warning if break occurs in both loops within 5s
Wingspan
35.8m - Winglet A320 A321
34.1m - No Winglet A319 A320
Passenger standard weights
Adult Male - 93kg
Adult Female - 75kg
Child - 35kg
Child is 2 - 12 years old
Checked baggage standard weights
Normally use actual weights. If not available:
Domestic: 11kg
Europe: 13kg
Intercontinental: 15kg
Permitted tech log fuel discrepancy
Check sum of FOB at end of last flight + fuel uplift = current FOB, within below limits. If not, maintenance action.
FOB after refuelling:
Up to 6t - 400kg discrepancy
6 - 12t - 500kg discrepancy
More than 12t - 600kg discrepancy
Fuel system logic
Fuel usage sequence:
Center tank
Inner tank
Outer tank
CEO
Center tank pumps
500kg used from inner then center tank pumps run (to prevent IDG Cooling cause overflow)
NEO
Center tank transfer valves
Fuel transfers to inner tanks. Transfer valves close when inner tank full and reopen when 500kg used
If MODE SEL in AUTO, center pumps/transfer valves off/close 5 mins after center tank low level reached.
Outer/Inner transfer valves latch open when inner tank reaches low level 750kg
Some fuel diverted to cool IDG. Returns to outer tank. If outer tank full, overflows into inner tank via spill pipe.
LO LVL warning when one tank below 750kg. Independent from fuel quantity indications.
Total fuel load approx 18000kg
A321 has one (one each side!) big wing tank
What are the Airbus Golden Rules?
1) Fly Navigate Communciate
2) Use the appropriate level of automation at all times
3) Understand the FMA at all times
4) Take action if things do not go as expected
