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 NAVAIR 17-15-50.3
TM 38-301-3
T.O. 33-1-37-3
CGTO 33-1-37-3
T-62T-40-1
(VH-60N APU)
JOAP ATOMIC EMISSION ROTRODE
Fe
Ag
Al
Cr
Cu
Mg
Si
Mo
Abnormal Trend
(PPM Increase
3
2
2
2
9
2
in 10 hrs)
Normal Range
0-6
0-2
0-2
0-2
0-30
0-2
Marginal Range
7
3
3
3
31-37
3
High Range
8-9
4
4
4
38-44
4
Abnormal
10+
5+
5+
5+
45+
5+
Average Concentration Other Elements:
Ag < 1 ppm, Al < 1 ppm, Ti < 1 ppm, Ni < 1 ppm
NOTES
Mg/Al
-
Magnesium and aluminum are usually observed wherever corrosion
exists. However, when iron, magnesium, aluminum are present in
abnormal concentrations, microscopic inspection of debris should be
performed to determine whether metal is due to wear or corrosion.
Cr/Mo
-
Chromium and molybdenum should not be considered critical metals
unless iron is present in abnormal concentrations.
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