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OMB Flashcards

(105 cards)

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1
Q

Bank angle limitation in normal flight

A

30 degrees

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2
Q

What surface conditions is a T/O or LDG NOT permitted? (3)

A

Wet Ice
Water on top of compacted snow
Dry snow or wet snow over Ice

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3
Q

Are you allowed to take off on RWYCC0?

A

NOT permitted

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4
Q

Partial snow removal, minimum cleared width
I) 45m
2) >45m

A

1) 30m cleared

2) 45m cleared

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5
Q

Taxi speed on contaminated runways?

A

10kt

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6
Q

At speeds below 20kt what deactivates?

A

Anti skid

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7
Q

When is a OETD prohibited?
3 operational reasons
4 technical reasons

A

Taxi surface is slippery
LVP
Main gear power push

HYD Y pump serviceable
ELEC gen 1 serviceable
PACK 1 serviceable
No steering/braking capability

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8
Q

FO handling limits

A 
Max 20kt xwind inc gusts
No planned tailwind ldg *** FO
No Flap 3 *** FO
T/O min RVR 400m
Minima:
 -Cat 1 ILS
- minima for NPA
- 5000m for circling 
45m wide runway
No contaminated or slippery runway conditions (Declared by airport)
No reported windshear
No autoland normal ops
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9
Q

Latest point to take Flaps 2

A

2000ft TDZE OR 6nm

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10
Q

2 regulated calcs to do

A

RTOW

Dispatch RLDW

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11
Q

What do you do if parking brake chocks are not in place on walk around?

A

Ensure parking brake is set

Sufficient accumulator pressure

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12
Q

Battery voltage check - above what?

Charging cycle procedure:

A

Above 25.5V (charge above 50%)

Bat auto
Ext power on
After 20min
Batt off
Above 25.5V??
Auto
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13
Q

Apu fire test - what happens?

A

ECAM
CRC
MASTER WARNING

APU FIRE LIGHT RED
Squib and disch light on

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14
Q

How many sec do you wait before pushing APU Start pb sw?

A

3 sec

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15
Q

When must you NOT use APU bleed air?

A

When a LP or HP ground air unit is connected to the aircraft

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16
Q

Zone temp range

A

24 +- 6 C

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17
Q

ECAM recap button - how long press for and why?

A

3 sec

Recalls all warnings cleared or cancelled during last flight

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18
Q

HYD RES fluid level

Why can it sometimes vary?

A

Varies with OAT

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19
Q

CEO eng oil Q

A

9.5 + 0.5 qt/hr

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20
Q

NEO oil Q

A

Highest of:
10.6
Or
8.9 + estimated consumption 0.45 qt/hr

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21
Q

How to check relevant OEBs

A

BNTC section of tech log

Standard aircraft spec

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22
Q

Emergency equipment FLT deck

10 items

A

Life jacket (correct no, stowed correctly)

Axe (stowed correctly)

Smoke hood (stowed correctly)

Portable fire ext (stowed correctly, safety catch in pos, red disc ind present, pressure in green arc)

Ox mask stowed

Torch (correct no, stowed correctly)

Escape rope (stowed)

Protective gloves (correct no stowed correctly)

ELT (ARMED) stowed correctly

FAK (stowed and sealed)

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23
Q

Purpose of walk around

3

A

No impact damage to structure

No evidence of fuel, oil or HYD leak

All ground chess doors are closed

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24
Q

Complete IRS alignment following cases

4

A

First flight of the day

Crew change

GPS not avail, nav aid coverage poor on expected route

GPS not avail flight > 3hr

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25
Fast alignment
When complete alignment not necessary. | IRS FMGC difference >5nm
26
ELEC Battery check
Off then ON (Initiates charging cycle of the battery) 10sec later Check ELEC SD page for Below 60A and DECREASING
27
Batt test - what if one batt not below 60A
Wait until end of charging cycle and do the test again
28
When is navaid deselection not required?
When you have GPS primary
29
FMS R2 asks for ground temp during route entry - why is this?
Optimise climb
30
RLDW
Use preliminary WX MEL/CDL items Verify against planned LDW
31
Baro max differences
20ft between PFD 100ft between ISIS Check PFD alt indic vs airport elevation less than 75ft
32
A319 loading policy
Up to 150 bags in REAR HOLD Max 50 in CP5, MAXIMISE USE CP4 Overspill in CP1
33
A320 loading policy
Load CP1 (approx 85 bags) Remaining in CP4 Then use CP3 CP5 non normal situations
34
Engine Idle parameters
CEO 2/6/4/3 19.5%/58.5%/390c/275kg/h | NEO 2/7/5/3 19%/68%/520c/290kg/h
35
OETD considerations
Ramp and slope Thrust/ jet blast effect Workload Direction taxi routing
36
Icing conditions definition
OAT (ground) TAT (flight) below 10C Visible moisture of any form Clouds, fog <1600m vis, rain, snow, sleet, ice crystals
37
CEO Ice shedding Procedure Conditions What about in freezing precipitation
Ground ops OAT +3C or less for more than 30min 70% N1 for 30sec not greater than 30min Intervals Perform just before T/O - ensure normal eng parameters FZ RA, DZ, FG, +SN ice shedding maybe be enhanced: not exceed 10min, 70% N1 momentarily (no hold time)
38
NEO ice shedding proc
50% N1 5 sec interval not greater than 60min 120min in ground icing conditions - MAINTENANCE action
39
Why do you wait for start pressure before starting eng no 2?
Ensure bleed system valves are no longer in transit Prevent eng 1 stall
40
TREF values
A319 ISA +30 A320 CEO/NEO ISA +29
41
WX RADAR RDR400 mode during taxi out?
ALL WX
42
ENG MOD sel on T/O 3
Runway is standing water +RA is falling +RA or severe turbulence is expected after T/O
43
Tailwind or crosswind >20kt technique
Full forward sidestick Rapidly increase thrust from 50-70 % N1 Progressively increase thrust to T/O setting by 40kt GS Sidestick neutral by 100kt
44
MAX REC FL - what buffet?
At least 0.3G buffet margin
45
When is a nav accuracy check required? Give 4 answers
GPS PRIMARY lost IRS only Nav PROG page says accuracy low NAV ACC DOWNGRADE on MCDU
46
How do you manually check nav accuracy
Compare FMS pos with radio pos Ie TO waypoint vs DME distance <3nm reliable >3nm not reliable Massive difference - disengage managed NAV - USE RAW DATA
47
How often should you check RVSM in flight?
Intervals of approximately 1hr
48
In flight landing perf requirements
Factored landing distance is less than LDA for the selected conditions. If it exceeds parameters - re computation with different input parameters will be required
49
Max addition to VAPP in gusty conditions
VLS +15
50
Stable criteria
Landing Config Correct lateral vertical flight path (g/s, FMS, pApi) +10/-5 speed Bank angle max 15 deg
51
MUST go around at 1000ft RA if?
Not in landing config > Vapp + 30
52
Go around at 500ft RA
Not stable Landing checklist not complete
53
Circling stability differences
400ft Bank angle max 15 within +/- 30 deg of track
54
Discontinued approach procedure
Cancel approach Disarm approach mode (ILS or final app) Lateral mode as required Vertical mode as required (v/s or level off) Adjust speed
55
FINAL APP - TOO STEEP PATH after FDP What do you do?
Do not use FINAL APP guidance for app - USE NAV FPA or TRK FPA
56
Acceptable difference between MCDU and chart for VERTICAL PATH
0.1 deg
57
Final app approach when can you press APP pb?
FDP is to waypoint Aircraft is cleared for the approach
58
Management of degraded Nav VOR/NDB approach
Revert to appropriate raw data NAV FPA Or TRK FPA
59
Management of the degraded navigation When can you continue with other system?
GPS PRIM lost on 1 ND Nav acc downgrade on FMGS
60
5 reasons to discontinue an RNP approach
GPS PRIM lost on both NDs XTK>0.3nm NAV FM POS DISAGREE ECAM NAV ACC DOWNGRADE both FMGS 75ft below vertical path
61
Circling approach
Circling minima 100 above level off 45 deg turn, 30sec wings level Turn downwind, act sec Abeam threshold start timer 3sec 100ft AAL
62
“Speed”
+10 -5
63
“Sink rate”
V/s > 1000fpm
64
“Bank”
Greater than 7 deg
65
“Pitch”
Below -2.5 deg | Above 10 deg (A320/A319)
66
“LOC” or “GLIDE”
Half dot
67
“Cross track”
0.1nm deviation final app mode
68
“V DEV”
Half dot
69
“Course”
1/2 dot VOR 5 deg ADF
70
“PITCH PITCH”
+10 deg a319/a320 during landing
71
“PITCH” during G/A
Greater than 20 up | Less than 10 up
72
“SINK RATE” during G/A
If there is no climb rate
73
What is a steeper angle approach?
3.5-4.5 degrees
74
What approach angle is the A320 certified to fly to?
4.5 deg
75
When is a stabilised approach required?
> 3.5deg
76
An unplanned emergency landing in Imminent
Attention crew brace brace
77
Cabin crew take up landing pos
Passing 2000ft in Des for a planned emergency landing
78
Brace brace
500ft Des for a planned emergency landing
79
Climb gradient requirement Second segment Final segment
Second 2.4% gross | Final 1.2% gross
80
Obstacle clearance take off path
35ft above the end of the take off distance
81
Net take off path must clear all obstacles by
35ft vertically | 90m +0.125*D
82
When is an engine considered secure?
Engine master off | Fire or damage fire switch is pushed and first agent discharged (or second agent if light still illum)
83
V2 may be increased (by efb calc) when and why?
Excess take off distance available Improve second segment climb
84
Flex - why do you have longer stop distances than efb says
1) lower TAS at ambient temp than assumed flex temp | 2) thrust delivered by eng is sig higher at ambient temp than assumed flex temp (higher air density)
85
2 reasons flex take off is not allowed
Contaminated runway Dispatch with landing gear extended
86
Fluid contaminants Types Depth Threats
Dry snow Wet snow Standing water Slush Depth of more than 3mm Precipitation drag Hydro planing
87
Hard contaminant
Compacted snow Ice Wet ice ONLY reduce friction force
88
Take off perf on a contaminated runway is based on:
TYPE and DEPTH as reported in RCR
89
contaminated runway screen height
15ft instead of 35
90
Contamination equivalences
Up to 3mm of dry snow, wet snow, standing water, slush = WET FROST = WET Snow scenarios see OMB
91
When can you NOT DISPATCH off a narrow runway?
NWS inop One or more brakes inop
92
When is a rolling take off not permitted?
TOGA due to a perf lim (RWY/OBS)
93
Calculation reduce ASD for a flex T/O
3% for every 10C temp between flex and OAT Eg. Flex 50, OAT 10 Difference is 40 = 4 lots of 10 0.03*4=0.12 REDUCE 12% ASD
94
Purpose of a dispatch landing calc
Determine max allowable landing weight Anticipated wx and surface conditions
95
In flight landing per purpose
Determine factored landing distance to assess actual margins on LDA Actual conditions Allow crew to select appropriate flap, rev, autobrake
96
When must an RCR be supplied?
When a runway is not DRY
97
Take off and dispatch planning, crew shall use
Type of Contam and DEPTH
98
In flight landing perf crew shall use?
RCR actual conditions
99
When can you NOT do a FLAP 3
Tailwind greater than 10kt Technical defect affecting landing perf No runway contamination
100
If brake mode MANUAL is used to ensure FLD < LDA You MUST:
Select MED autobrake Max reverse PF over ride and brake manually at nose wheel touchdown
101
Taxi fuel burn
10kg/min | 7kg/min OETD
102
Approach fuel burn
17kg/min
103
Holding fuel burn 1500ft
40kg/min
104
Adequate aerodrome distance
A319 380nm | A320 400nm
105
Take off alternate
OEI still air 320nm

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