OMB - On Ground

Question 1

In case of discrepancies between procedures/publications, what is the priority order?

Answer 1

OFP inc NOTAMs, crew alerts etc
NTCs
OEBs
Ops Manuals
FCOM
FCTM
Various Guidance Material

Question 2

When is a full IRS alignment required?
And a fast realignment?

Answer 2

Full IRS:
First flight of the day
Crew change
No GPS and poor Naviad cov enroute
No GPS and flight time >3 hours

Fast alignment:
If IRS position drifted >5nm

Question 3

When is cockpit security search/emergency equipment check required?

Answer 3

Security search always, emergency equipment check when arriving at aircraft without crew handover

Question 4

What emergency equipment is there in the flight deck?

Answer 4

Life jackets
Axe
Smoke hood
Torches
Protective gloves
Oxygen masks
Portable fire extinguisher
Escape ropes
ELT
First Aid Kit

Question 5

What position is the dome light recommended to be in & why?

Answer 5

Dim at night as if the a/c goes into emergency elec config it is the only light in cockpit that will remain on

Question 6

When should you select probe/window heat on, when can it be switched off?

Answer 6

Switch on if cockpit windows frosted over on the ground
Probe heat can be switched off after first engine running as it will run automatically

Question 7

When should pack flow be set to LOW?

Answer 7

Pax below 130

Question 8

How is a battery test completed?

Answer 8

Switch off both batteries and then back on which will initiate a charge cycle. If the batteries do not need charging (which is what we want) we should see Amps below 60 and decreasing

Question 9

How is the cockpit door test completed?

Answer 9

ANN light on, check lights on centre pedestal and 3 lights on overhead panel
Check operation manual & electrical

Question 10

What are the maximum preflight altimeter differences between
Both PFDs
PFDs & ISIS
PFDs & airport elevation

Answer 10

Both PFDs 20ft
PFDs & ISIS 100ft
PFDs & airport 75ft

Question 11

What is the maximum fuel discrepancy between fuel uplift and difference between FOB and fuel at end of last flight?

Answer 11

Up to 6 tons - 400kg
6-12 tons - 500kg
>12 tons - 600kg

Question 12

What are the Ice Shedding procedures for A319/320 CEO and A320/321 NEO?

Answer 12

A319/320 CEO - OAT 3deg and less, engine to 70% for 30sec every 30 mins

A320/321 NEO - OAT 3deg and less, engine to 50% for 5 sec every 60 mins

Question 13

Does WAI work on the ground?

Answer 13

No, if turned on it will do a self test for 30 seconds and then switch off

Question 14

How do you check navigation accuracy and what are the criteria for reliable/unreliable FM position?

Answer 14

FM position unreliable if different between FM position (PROG page) and Navaid fix (real position) is >3nm

Question 15

What are the LMC rules?

Answer 15

New form +10 / -20 pax
If LMC negative or less than +250kg and within 2%, no changes needed
If LMC positive and over 250kg or outside 2%, redo W&B and Perf

Question 16

Which OEBs are currently applicable on certain aircraft?

Answer 16

OEB 57 Speedbrake limitation
If GWCG >35% or overweight landing do not use Speedbrakes below 240kts

Speedbrakes extended and up to 50 secs after their retraction AP has more authority in pitch for GA

In approach with flaps extended and significant aft CofG or overweight and AP engaged, could lead to over pitch in a GA

Question 17

When should you complete a RTOW calculation?

Answer 17

When performance RTOW is likely to be less than max structural takeoff weight

Question 18

What do you do if batteries are below 25.5v during cockpit setup?

Answer 18

Switch batteries to auto and select ground power.
Charging cycle should take approx 20 minutes

Question 19

Can the APU fire test be done with APU running?

Answer 19

Yes

Question 20

What is the benefit of running both ground power and APU with APU bleed
on whilst on the ground?

Answer 20

APU bleed air conditioning is more efficient as the APU is not having to supply the electrical network of the aircraft

Question 21

What is the range of selectable zone temperatures?

Answer 21

18-30 degrees

Question 22

How long should you press and hold ECAM recall button during transit?

Answer 22

At least 3 seconds to recall any previously cancelled warnings and cautions

Question 23

What should you do it accumulator pressure if below the green range?

Answer 23

Put on Yellow Elec pump to recharge it

Question 24

When do the NWS DISC appear on EWD and when does it turn amber?

Answer 24

When ground crew inserts NWS bypass pin into nose gear & turns amber when inserted and at least one engine running

Question 25

Where is the power-push procedure found?

Answer 25

FCOM-PRO-NOR-SUP-MISC

Question 26

What should you do if ground personnel report fuel dripping from an engine during start?

Answer 26

If reported from engine drain mast run at IDLE for 5 mins, if it stops OK to continue without maintenance action

Question 27

Can single engine taxi be used first flight of day?

Answer 27

Yes, 3 mins warm up, same as usual

Question 28

Minimum runway width for 180 turn?

Answer 28

30 metres

Question 29

What is the preferred loading for a 319 and 320?

Answer 29

319 - up to 150 bags in rear hold, CPT 4 first then up to 50 bags in CPT 5
320 - CPT with approx 85 bags, then CPT 4 (CPT 3 if necessary)