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B1 Modules > Maintenance Practices M7.18 > Flashcards

Maintenance Practices M7.18 Flashcards

1
Q

What is primary structure

A

Highly stressed

If damaged may result in loss of aircraft

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2
Q

What is LAMP

A

Light Aircraft Maintenance Program

CAA say how often certain checks must be done

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3
Q

What is LAMS

A

Non EASA light aircraft

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4
Q

What is corrosion level definition Level 1

A

Regularly found - no change in program required

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5
Q

What is corrosion definition Level 2

A

Program not effective - needs amendment

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6
Q

What is corrosion level 3

A

Most serious

Program not effective and all aircraft in fleet must be checked

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7
Q

What happens when bearings are overlubricated

A

CHURNING

High temps can occur which is a fire hazard

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8
Q

What are the two main bearing defects

A
  • False brinelling
  • True Brinelling
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9
Q

What is elyptical wear marks in an axial direction on a bearing

A

False brilelling

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10
Q

What is it called when bearings have static overload or severe impact

A

True brinelling

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11
Q

After cleaning bearings what must be done

A

They must be re greased within 2 hours

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12
Q

What must be done if a component has intergranular corrosion

A

Must be replaced

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13
Q

What type of endoscope must be used in a heat sensitive area

A

2nd type because they provide cold light

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14
Q

What is a type 1 endoscope

A

Fixed

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15
Q

What is a type 3 endoscope

A

Flexible

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16
Q

What is allowable damage within the damage classifications

A

Slight or little insignificance

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17
Q

What is non allowable damage

A

Exceeds allowable damage

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18
Q

What is non repairable damage

A

Replacement

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19
Q

What are the main corrosion removal techniques

A
  • By hand for light corrosion
  • wire brush (stainless or aluminium only
  • grinding wheels (not on ally)
  • abrasive blasting
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20
Q

What is abrasive blasting used for

A

To remove filiform corrosion

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21
Q

When blending titanium what must you have on standby

A

Non water based fire extinguisher

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22
Q

What is CAA surface protection

A

Chromic Acid Anodising

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23
Q

What is CCC surface protection

A

Chemical Conversion Coating

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24
Q

How many layers of paint do airbus aircraft have

A

3

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25
How many layers of paint do Boeing airbus have
2
26
What are the 3 types of surface protection repair
- Fixing - partial - Basic renewal
27
What type of paint must be avoided on antennas
Electrically conductive
28
What corrosion protection substance must not be used near oxygen
Dinitrol
29
What must cover 75% of countersinks
Electrically conductive paint
30
What is the most common water repellant
Dinitrol
31
What shows up when doing Die pen if there is a crack
Red line or red dots
32
Can there still be a crack if nothing shows during die pen
Yes
33
What ray is better picture than gamma ray
X ray more isotopes
34
What are the disadvantages of x ray
- Everyone must be evacuated - users require health check
35
What is eddy current used for
For surface and just beneath surface flaws
36
Does eddy current require paint removal
No
37
What type of materials can eddy current only be used on
Conductive materials only
38
What is ultrasound used for
Below surface flaws in all solid material
39
How does ultrasound work
Uses a transducer to convert sound energy into electrical energy to produce a picture
40
What is a fibroscope
Flexible and produces cold light
41
What are the benefits of FPVVA
Flexible probe video visual aid - Flexible - You can take pictures - Reduces eye strain - Stronger light source
42
What must be done after using the magnetic flaw detection process of NDT
Must de magnetise component afterwards
43
Is weight distribution more critical in small or large aircraft
Small
44
In a small aircraft if the pilot is flying solo how does he know where to sit in relation to weight and balance
There should be a placard on the instrument panel
45
What is the aircraft max weight
The ac itself, pax, baggage, fuel
46
What is basic weight Empty
Complete aircraft with all closed system fluids but no fuel
47
What is disposable load
Pax, baggage, fuel
48
What is payload
Pax bags freight
49
What must be done to aircraft with less than 10 pax and helicopters with les than 6 pax
Must employ weight and balance
50
Aircraft with how many pax and above have standards weight amounts for pax
20 pax 88kg for male 70kg for female
51
On swept wing and large aircraft how is the centre of gravity determined
% of mean aerodynamic chord
52
What can effect MATOM and MALM
Environmental conditions
53
If an aircraft gets stuck in soft ground how would you get it out
With a towing arm and bridle
54
What is the max towing speed for an aircraft with doors locked or been removed with a tow bar
25kph
55
What’s the max tow speed with doors open but with tow bar
10kph
56
What’s the max tow speed with out tow bar
32kph
57
If parking an aircraft but not for more than 12 weeks what is vital that must be done
- Fill fuel tanks to at least 90% to prevent Gladys - Water drains 1 hour after fuelling
58
Can turbine engines run on avgas
Yes
59
Can piston engines run on jet fuel
No
60
When fuelling how far away should the no smoking zone be
15m
61
How far should the fuelling zone be when fuelling
6m
62
What is Deicing
Removing ice or frost
63
What is Anti icing
Preventative measure
64
What is a cold soaked condition
- If OAT is less than 0° - No ground power - No air con
65
What is holdover time
- Starts as soon as spraying starts - Affected by OAT - Severity of weather - Type of fluid
66
Out of type 1,2 and 4 which fluid is Newtonian
Type 1
67
What fluids are non Newtonian
2 and 4
68
What is the worst kind of ice
Glaze ice
69
What does Glaze ice look like
Glassy deposit

B1 Modules (19 decks)

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