Limitations Flashcards
Max tyre speed
195kts
Max wiper speed
230kts
Max speed cockpit window open
200kts
Max cabin pressure differential
+9 psi and -1psi
Safety relief valve at 8.6psi
Min height for autopilot
Take off 100ft and 5 seconds Non precision - applicable minimum Circling - minima -100ft Cat 1 ILS - 160ft G/A - 100ft
A320 dimensions
37.57m by 34.1
SH 37.57m by 35.8m
A319 dimensions
33.84m by 34.1
Which compartments are unpressurised.
Nose gear bay
Air conditioning compartment
Main gear bay
Tail cone
Flight maneuvering load acceleration limits?
Clean -1g to 2.5g
Slats and/or flaps extended 0g to 2g
Max altitude with slats or flaps extended?
20000ft
Max fuel imbalance
Inner tanks, outer tanks balanced
1500kg in flight and landing
500 kg take off
Min fuel temp (JET A1)
-43 degrees C
Adv below -40
Hydraulic systems normal pressure
3000 +/- 200 psi
APU limitations?
LOW OIL LEVEL ECAM
APU starter
Low oil ECAM - may be started, maintenance required within 10 hours
After 3 starter motor cycles wait 60 min before attempting 3 more cycles.
Engine start EGT limit
725 degrees C
Engine oil min temperatures
Start -40 degrees C
Take off -10 degrees C
Oil pressure Advisory at?
90 psi
Max runway slope
2%
Minimum fire fighting category
Departure/destination 6
4 with caveats (temporary notamed downgrade)
Alternates UK 5, non-UK 4
Commander may choose to land at an aerodrome regardless of category if deemed safer than diversion.
Altimeter tolerances
ADR to airfield elevation 25ft
ADR to ADR 20ft
ADR to Isis 100ft
Min engine oil?
9.5qt plus 0.5qt/hr
Wake turbulence separation final approach
2.5/3nm medium
4 nm 757
5 nm heavy
7 nm 380
Wake turbulence separation take off same position
2 mins heavy
3 mins 380
Wake turbulence separation take off intermediate position
3 mins heavy
4 mins 380
After A380 landing on displaced threshold 3 mins
Single engine landing capability
Cat 3 single
What does REC MAX mean?
Rec Max FL gives at least 0.3g buffet margin
A/C can maintain a v/s of 300ft/min at Max CLB THR
A/C can fly speed between green dot and Vmo
A/C can fly level at max CRZ THR
FCOM Autoflight performance
What is the minimum number of cabin crew?
3 crew on A319 with max 150 pax.
4 in all other cases unless in unforeseen circumstances and with duty pilot authorisation (with restrictions).
OPS A 4.1.4
What is the wind limitation for use of passenger and cargo doors?
The maximum wind for passenger door operation is 65 kt.
The maximum wind for FWD and AFT cargo door operation is 40 kt (or 50 kt, if the aircraft nose is into the wind, or if the FWD and AFT cargo doors are on the leeward side).
The FWD and AFT cargo doors must be closed before the wind speed exceeds 65 kt.
FCOM LIMITATIONS
What are the speed limits and maximum tiller deflection for –
1 deflated tire
2 deflated tires
Damaged tires
1 tyre (one or more gears), 7kts in turn 2 tyres on one gear, 3 kts in turn, maximum 30 degrees
If tyres are damaged then an inspection must be carried out.
Limitations - L/G
What is the maximum brake temperature for take off?
300 degrees (brake fans off) Limitations L/G
During taxi out, if an arc indication appears above the brake temperature on the ECAM WHEEL page set the brake fans on.
The maximum certified brake temperature prior to take-off is 300°C. In circumstances when brake temperatures approach this limitation, the recommended procedure is to use brake fans to reduce the temperature to 150°C.
OMB
Where would you find the minimum flight crew oxygen requirement?
FCOM Limitations oxygen
Starter cycle limitations for the APU?
APU STARTER
After 3 starter motor duty cycles, wait 60 min before attempting 3 more cycles.
Starter cycle limitations for the Engines?
4 consecutive cycles: Each lasts a maximum of 2 min
Pause between start attempts: 20 s
Cooling period, after 4 start attempts: 15 min
No running engagement of the starter, when N2 is above 20 %.
What is IRS drift? Where do you find the tolerences?
When do you do a quick align/full alignment of the IRS’s? When do you consider the IRS to unserviceable?
After the flight, the flight crew must check the IRS performance once parked. To check IRS performance, the flight crew compares the IRS position with the FMGC position in Nautical Miles.
The NAV TIME is the cumulated block time since the latest IRS alignment (fast or complete).
On the MCDU POSITION MONITOR page, read the deviation of each IRS position from the FMGC position and check that the value does not exceed values in the table in OMB.
Full alignment at beginning of day. Quick alignment if drift greater than values in table and on a crew handover.
Is it a requirement to check the flight deck oxygen on every turnaround?
Oxygen Mask Test – First Flight of the Day Only
Which components can pressurise the GREEN System?
EDP1 & PTU
Which Components can pressurise the BLUE System?
Blue Electric Pump & RAT
Which components can pressurise the YELLOW System?
EDP2 PTU & Yellow Electric Pump
Which components can the Hand Pump pressurise?
Cargo Door actuators only.
When will the PTU Operate?
When the difference between the GREEN & YELLOW systems exceeds 500 psi.
When is the PTU inhibited?
- Aircraft is on GROUND, and
- Either: Park Brake is set,
- or NWS is in the towing position, and
- One Eng Master SW is ON, the other OFF.
- Also, it will not run within 40 secs of Cargo Door operation.
Does the RAT deploy automatically for any Hydraulic System Failures?
No
What do the priority valves do?
Cut off hydraulic power to heavy users. This preserves hydraulic power for flight controls.
Hydraulic Reservoirs are pressurised. Why?
This prevents cavitation at the pumps. Particularly at altitude.
When does the BLUE electric pump usually operate?
After First Engine Start or In flight with AC power available.
When does the YELLOW Electric Pump normally operate?
- Switch in NORMAL Position - For Cargo Door Operation only.
* Switch in ON Position - It runs if AC Power is available.
What 4 faults cause EDP1 or EDP2 FAULT lights to illuminate?
- Reservoir Low Level
- Reservoir Overheat
- Reservoir Low Air Pressure
- Low Pump Output Pressure
If a FAULT light illuminates in a Pump or the PTU pb, the PUMP/PTU is switched off. What is the difference in sysytem response for an OVERHEAT (fluid or pump)?
The FAULT light remains illuminated until the system cools when it will extinguish. For other faults the FAULT light(s) extinguish when the pb is switched OFF.
Before Engine Start, which hydraulic systems can be pressurised?
ALL OF THEM
* Switch the YELLOW Elec Pump ON, this will pressurise the YELLOW system and GREEN via the PTU.
- Select the BLUE override pb ON, this will pressurise the BLUE system.
At what pressure is a ‘Low Pressure’ ECAM caution/Warning triggered?
1,450 psi
Is the loss of EDP1 the same as the loss of GREEN hydraulics?
- NO
- The PTU will maintain GREEN pressure if EDP1 fails.
On Take-off a Double Hydraulic Failure occurs at 90 knots. Will this generate an ECAM warning?
No This warning is inhibitted from 80 knots to 1,500 feet.
Which Busbar powers the BLUE electric pump?
AC1
Which Busbar powers the YELLOW electric pump?
AC2 or External power (Yellow Pump is on the Ground/Flight Bus.)
Aircraft is shut down, battery switches OFF. Can the RAT be manually deployed?
YES Control comes from the HOT BATT Busbars
What is the normal range of hydraulic pressure?
3,000 psi +/- 200
Following the loss of GREEN, YELLOW or BLUE due to RSVR OVERHEAT, LO AIR PR or LO LEVEL, may the the system be restored for the approach?
LO AIR PR: System Pump/PTU as appropriate may be re-activated. RSVR OVERHEAT: May be restored if overheat has cooled (FAULT light out) LO LEVEL: System is not to be used.
The BLUE Pump has failed. Are we required to deploy the RAT?
No
The BLUE pump has failed & now the GREEN (or YELLOW) System also fails. Are we required to deploy the RAT?
YES
Which DUAL hydraulic Failure will NOT put the aircraft into Alternate Law?
BLUE & YELLOW
- What is the normal range of the cabin differential pressure? 2. When does it turn Amber?3. When do the safety vents open?
- Between -0.4psi and 8.5psi non-inclusive 2. Greater than or equal to 8.5psi and lower than or equal to -0.4psi3. 8.6psi if too high, -1psi if too low
What LMC changes would require a new load sheet?
10 or more extra passengers20 less passengers
What is the stable approach criteria?
In the landing configurationVapp +10/-5RoD
What is the FO crosswind limit?
20kts including the gust
What is the total crosswind limit when the runway is reported as ‘slippery when wet’?
25kts15kts when braking action reported as poor.
What is the minimum fuel temperature?
-43 degrees (Jet A1)
