MAL Codes +CORROSION

Question 1

MAL codes for surface corrosion?

Answer 1

C01 minor
C02 moderate
C03 severe
C04 flight critical

Question 2

MAL codes for pitting corrosion?

Answer 2

C11 minor
C12 moderate
C13 severe
C14 flight critical

Question 3

MAL codes for exfoliation corrosion?

Answer 3

C21 minor
C22 moderate
C23 severe
C24 flight critical

Question 4

MAL codes for galvanic corrosion?

Answer 4

C31 minor
C32 moderate
C33 severe
C34 flight critical

Question 5

MAL code 000?

Answer 5

Administrative - look portion of an inspection or work request for manufacture

Question 6

MAL code 301?

Answer 6

FOD- use 374 for internal failure

Question 7

MAL code group 570-579?

Answer 7

Non destructive inspection methods

Question 8

MAL code group 799-811?

Answer 8

NO DEFECT types

Question 9

MAL code 787?

Answer 9

Tire removal - normal wear

Question 10

MAL code group 812-818?

Answer 10

Cannibalization methods

Question 11

MAL code 020?

Answer 11

Worn- stripped, chaffed, frayed except electrical wiring

Question 12

MAL code 070?

Answer 12

Broken- burst, ruptured, punctured, torn, cut

Question 13

MAL code 255?

Answer 13

No output

Question 14

MAL code 281?

Answer 14

HIGH output

Question 15

MAL code 282?

Answer 15

LOW output

Question 16

MAL code 381?

Answer 16

Leaking- internal or external

Question 17

MAL code 696?

Answer 17

Fluid low

Question 18

MAL code 781?

Answer 18

Tire leakage excessive or blowout

Question 19

MAL code 782 ?

Answer 19

Defective or damaged tire sidewall, tread, bead, etc

Question 20

MAL code 823?

Answer 20

No start- stalled/hung start, hot start etc

Question 21

MAL code 127?

Answer 21

Adjustment or alignment Improper

Question 22

MAL code 167?

Answer 22

Torque incorrect

Question 23

Name the section of the name that refers to SE corrosion documentation?

Answer 23

16.2.2.6

Question 24

Corrosion treatment documentation?

Answer 24

Document as a fix phase MAF, use A/T code Z and MAL code C01-C33. Or 170 because NALCOMIS isn’t updated yet.

Question 25

Corrosion prevention documentation?

Answer 25

Documented on a MAF, use WUC 040 A/T code 0 MAL code 000

Question 26

Define electrolyte ?

Answer 26

A liquid solution (usually water) containing ions. E.g. Salt water

Question 27

Common SE metals?

Answer 27

Aluminum, steel, and magnesium, cadmium, nickel, chromium, and silver

Question 28

Uniform surface corrosion?

Answer 28

Results from direct chemical attack on a metal surface. Involves only surface metal.

Question 29

Galvanic corrosion?

Answer 29

Occurs when two dissimilar metals are in contact with each other and an electrolyte

Question 30

Putting corrosion?

Answer 30

Common on magnesium and aluminum alloys

E.g. White or grey powdery substance

Question 31

Exfoliation corrosion?

Answer 31

An advanced form of inter-granular corrosion that occurs when the surface grains of metal

Question 32

Crevice corrosion?

Answer 32

Occurs when the electrolyte in a crevice has a different concentration than the area adjacent to the crevice.

Question 33

Filiform corrosion ?

Answer 33

Is a special form of oxygen concentration cell corrosion or crevice corrosion that occurs on metal surfaces having an organic coating on them.

Question 34

Fretting corrosion ?

Answer 34

A special form of concentration cell corrosion (crevice corrosion) that occurs in combination with surface wear.