C4, SB 740-97-38
Classification
Item
Defect
Major
Minor
A
B
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
connectors
Cracked or checked; kinked; broken; fungus growth ..........................................x
Filters and sediment
bowls
Stage IV corrosion on internal surfaces; cracked
or broken.......................................................................................................x
Stage III corrosion on internal surfaces; element
deteriorated or contaminated ........................................................................
x
Stage II corrosion on internal surfaces................................................................
x
Carburetor, injectors or
nozzles.
Stage III corrosion; cracked or broken ................................................................x
Stage II corrosion; contaminated.........................................................................
x
Seals
Deteriorated; leaks or seeps ...............................................................................x
Rain cap
Stage IV corrosion; 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
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
electric motors, and
starters.
Stage III corrosion; frozen...................................................................................x
Stage II corrosion................................................................................................
x
Stage III corrosion; cracked or broken ................................................................
x
Stage II corrosion................................................................................................
x
LUBRICATION SYSTEM:
Lines, hoses, and fittings
Kinked; broken; leaks or seeps, checked or cracked;
fungus growth...............................................................................................x
Filters
Stage III corrosion on internal or external
surfaces........................................................................................................x
Stage II corrosion on internal surfaces; element
deteriorated or contaminated ........................................................................
x
Lubricant
Contaminated......................................................................................................
x
Seals
Deteriorated; leaks and seeps.............................................................................x
CONTROLS AND
INSTRUMENTS:
Stage III corrosion; cracked or broken; inoperable;
dial face illegible
Stage II corrosion; linkage frozen........................................................................
x
GOVERNORS:
Stage IV corrosion; linkage broken ...............................................................x
Stage III corrosion; linkage frozen.......................................................................
x
Stage II corrosion................................................................................................
x
III-CC-1