C 4, SB 740-97-38
Classification
Item
Defect
Major
Minor
A
B
Air cleaner
Stage IV corrosion....................................................................................
x
Stage III corrosion
............................................................................................................. x
Stage II corrosion
.............................................................................................................
x
Cooling system:
Radiator
Stage IV corrosion on internal surfaces; leaks .....................................
x
Stage III corrosion on internal surfaces; coolant
contaminated
............................................................................................................. x
Stage II corrosion on internal surfaces .............................................................................................................
x
Shutters and controls
Stage IV corrosion....................................................................................
x
Frozen; stage III corrosion
............................................................................................................. x
Stage II corrosion
.............................................................................................................
x
Fan Blades broken; stage IV corrosion
x
Bent; stage III corrosion
............................................................................................................. x
Stage II corrosion
.............................................................................................................
x
Cooling fins
Bent or otherwise damaged to the extent repair is required ...............
x
Seals and gaskets
Deteriorated; leaks or seeps ..................................................................
x
Hoses and belts
Checking and cracking; frayed orz cut; loss of
flexibility; fungus growth; broken reinforcing.....................................................................................................
x
Cracked; broken; stage IV corrosion .....................................................
x
Stage II corrosion
............................................................................................................. x
Stage II corrosion
.............................................................................................................
x
Water pump
Stage IV corrosion on internal surfaces; frozen; leaks........................
x
Stage III corrosion on internal surfaces .............................................................................................................
x
Stage II corrosion on internal surfaces .............................................................................................................
x
Fuel system
Tanks:
Internal surfaces
Stage III corrosion ....................................................................................
x
Stage II corrosion; coating peeling or flaking .....................................................................................................
x
External surfaces
Stage IV corrosion....................................................................................
x
Stage III corrosion
............................................................................................................. x
Stage II corrosion
.............................................................................................................
x
Lines, hoses, and
Cracked and checked; kinked; broken; fungus growth .......................
x
connectors
Filters and sediment
Stage IV corrosion on internal surfaces; cracked bowls or broken. ..
x
Stage III corrosion on internal surfaces; element
deteriotatetd or contaminated
x
Stage II corrosion onl internal surfaces .............................................................................................................
x
Carbuletor, injectors, or
nozzles.
Stage llI (orrosion; crackei or broken ................................................... x
Stage II corrosion; contaminmaitel
x
Seals
Deteriorated; leaks or Seeps................................................................... x
Rain cap
Stage IV con'osion; cracked, broken or missing ..................................
x
Stage III corrosion
............................................................................................................. x
Stage II corrosion
.............................................................................................................
x
Brackets and hangers
Stage IV corrosion; cracked or broken ..................................................
x
Stage III corrosion
............................................................................................................. x
Stage II corrosion
.............................................................................................................
x
Stage IV corrosion; punctured................................................................
x
and pipes.
Stage III corrosion
............................................................................................................. x
Stage II corrosion
.............................................................................................................
x
ELECTRICAL SYSTEM:
Wiring
Broken strands; cracked insulation; fungus growth............................
x
Frayed; checked; loss of flexibility
............................................................................................................. x
Terminals and connections
Stage III corrosion; broken terminals.....................................................
x
Stage II corrosion
............................................................................................................. x
Spark plugs
Stage III corrosion on spark point end; ceramic
insulator broken
............................................................................................................. x
Stage II corrosion on spark point end
.............................................................................................................
x
magnetos, and controllers
Stage III corrosion; broken; frozen ........................................................
x
Stage II corrosion
............................................................................................................. x
III-AA-1