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 NAVAIR 17-15-50.3
TM 38-301-3
T.O. 33-1-37-3
CGTO 33-1-37-3
ENGINE:
J52-P-8B/-8C/-408/-408A/-408B (NAVY ONLY)
AIRCRAFT:
(A-4) (EA-6B)
JOAP ATOMIC EMISSION ROTRODE
Fe
Ag
Al
Cr
Cu
Mg
Ti
Si
Mo
Abnormal Trend
(PPM Increase
2
1
2
2
2
2
2
5
2
in 10 hrs)
Normal Range
0-4
0
0-2
0-1
0
0
0-1
0-10
0-1
Marginal Range
5
*
3-4
*
1
1
2-3
11-12
*
High Range
*
*
5-6
*
2
2
4-5
13-14
*
Abnormal
6+
1+
7+
2+
3+
3+
6+
15+
2+
Average Concentration Other Elements:
Fe
Nos. 1, 4-1/2, 5, and 6 roller bearing and races
Nos. 2, 3, and 4 ball bearing and races
Front and main accessory drive gears
Fe
Al
Front accessory drive, No. 6 and main gearbox oil pumps
Fe
Ag
Cu
&
Front accessory bearing cages
Nos. 4 and 5 scavenge pump bearing cages
Si
Sn
No. 6 bearing cages
Mg
Main accessory drive housing
Main gearbox
Cu & Al
Fe
Main oil pump bushings
Ti
& Fe
Nos. 1 and 3 bearing hubs
NOTE
J-52 engines may not be operated until spectrometric oil analysis results have been received by the customer;
therefore all J-52 samples shall be processed by the JOAP laboratory immediately upon receipt and before other
samples previously received. Laboratory personnel shall immediately transmit results to the customer. Laboratory
personnel shall log all phone calls, facsimiles and e-mails concerning transmission of results including time of
sample receipt, time of results transmission, method of transmission and the name of the point of contact at the
customer activity. Refer to the decision making flowchart on page A-8.
1. If Fe equals or exceeds 6 ppm, issue advice code "T", "Do not fly or operate, recommend engine removal".
Submit filter for filter debris analysis (FDA).
2. If Fe is 5 ppm or the trend for Fe is 2 or greater, recommendation shall be code "R", "Do not fly or operate,
inspect filter using FDA". Advise lab of FDA findings. If the FDA inspection reveals that Ag, V, Mo, Fe, or Mg
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