Aircraft damage 1

Question 1

If any incident has occurred during flight, such as a collision, hard landings, severe turbulence, what does the flight crew do?

Answer 1

The flight crew will take note of any incident, reports it to Operations and then to the crew chief and maintenance team

Question 2

In the flight crew report, what characteristics of the damage are listed?

Answer 2

Possible cause, location and any changes to the performance.

Question 3

Once the aircraft is in the hangar, the log book entries are read and the information provided is used to determine what type of inspection is to be carried out. Manufacturers will list inspections that are specific to different types of damage. These methods can be found in the structural repair manual. T/F?

Answer 3

False. They are found in the maintenance manual

Question 4

In order to determine the extent of damage and determine the proper procedure torepair the damage, an inspection must be carried out. There are two inspections which may be carried out. What are they?

Answer 4

Manufacturer’s special inspection Searching inspection

Question 5

What is the difference between the manufacturer’s special inspection and a searching inspection?

Answer 5

Manufacturer’s special inspection is only if the damage is listed in the maintenance manual. Searching inspection if the damage is not listed in the maintenance manual

Question 6

There are certain types of damage that are common to aircraft and the manufacturer willspecify these in the Maintenance Manual and the proper steps for carrying these inspections. These are known as what type of inspections?

Answer 6

Condition inspections

Question 7

All condition inspections are laid out in detail as what must be inspected and what methods must be used. it will also list what?

Answer 7

References to determine safety issues, travel limits, etc

Question 8

As previously mentioned, a searching inspection must be carried out when the damage is not applicable to the maintenance manual. When doing such inspection, what must be done?

Answer 8

The inspection is thorough and usually extended to areas and systems that may have been damaged as well.

Question 9

In a Searching inspection the following steps should be taken: What are they?

Answer 9

The damaged area must be inspected to get a basic idea of the severity and extent of the damage ALWAYS check the substructure of the area for hidden damage and any pneumatic and hydraulic systems for leaksThe general appearance of the aircraft and surrounding areas should be inspected for further damage

Question 10

What are the 4 main visual signs of excessive loads on rivets?

Answer 10

Flaking or cracked paintTipped rivet heads or buttsPulled or missing fasteners

Question 11

Excessive loads require that rivets be removed from the surrounding skin. What does this mean for you as an inspector?

Answer 11

Look for elongated holes

Question 12

T/F? You don’t have to worry about bolts suffering from elongated holes as they do with rivets.

Answer 12

False

Question 13

To understand the importance of specific damage on an aircraft we must understand the differentclassifications of the structure of an aircraft. There are 3 basic types of structure that make up anaircraft. What are they?

Answer 13

Primary

Secondary

Tertiary

Question 14

The primary structure is defined as?

Answer 14

The main structure that is responsible for carrying all the loads imposed by all flight stresses within the design limits

Question 15

Any damage within the primary structure can cause what?

Answer 15

Catastrophic failure of the structure itself or loss of control

Question 16

The secondary structure is defined as?

Answer 16

The structure that is responsible for transmitting all flight stresses the primary structure in

Question 17

Like the primary structure, any damage to the secondary structure will render the aircraft unsafe to fly. T/F?

Answer 17

False. Any damage to the secondary structure doesn’t always render the aircraft unflyable

Question 18

The tertiary structure is defined as?

Answer 18

Any structural member or assembly carrying low stresses. Some examples include fillets, fairings and access doors

Question 19

When damaged, tertiary structures like secondary structures will not have any affects on the safety of the aircraft. T/F?

Answer 19

True

Question 20

Stress damage on an aircraft may look like what?

Answer 20

It may be quite extensive both externally and internally. Damage from stress may also occur remotely from the point of loading

Question 21

Why is fire damage dangerous to aircraft structures?

Answer 21

It may ruin the temper or heat treatment of structural parts and compromise the structural integrity

Question 22

The classification of damage depends on the extent and the location of the damage. The 3 classifications of such damages are?

Answer 22

Negligible damageRepairable damageDamage requiring repair

Question 23

What is negligible damage defined as?

Answer 23

Damage that can be mitigated or corrected with minor measures. No major repairs

Question 24

What are the two categories negligible damage?

Answer 24

-Damage which does not affect the safety of the aircraft and can be left as is-Damage that requires minor treatments, e.g stop drilling or blending out scratches

Question 25

What is Repairable damage and what are the two common repairs?

Answer 25

Damage beyond limits will require the addition of structural repair material andmust be repaired by patching or insertion (splicing)

Question 26

In a repair via patching, The reinforcements and rivets must be designed and located to do what?

Answer 26

Restore full structural strength and not alter its function

Question 27

What is the difference between patching and insertion?

Answer 27

Patching is the installation of reinforcements over the damage.Insertion requires the substitution of damaged parts with a new member.

Question 28

In a insertion repair, the insertion repair method are what?

Answer 28

The same at each end

Question 29

Damage requiring replacement is defined as?

Answer 29

When a piece damaged beyond limits is so severe that it requires replacement.

Question 30

Damaged parts which necessitate replacement are as follows:

Answer 30

Parts which are damaged beyond economical or practical repair.Damaged members, which are beyond negligible limits.Highly stressed members whose repair would leave an inadequate margin of safetyParts found understrength in areas affected by fire

Question 31

There are 4 classifications of repairs used onaircraft. What are they?

Answer 31

Special typical temporary specific

Question 32

Specific repairs are defined as?

Answer 32

Specifically designed and valid for the location called out in the repair illustration title

Question 33

Typical repairs are defined as?

Answer 33

Are a generic repair based on ultimate strength of materials