JOAP ATOMIC EMISSION ROTRODE (Cont)

NAVAIR 17-15-50.3

TM 38-301-3

T.O. 33-1-37-3

CGTO 33-1-37-3

ENGINE:

JT8D-9A (AIR FORCE ONLY) (Cont.)

AIRCRAFT:

(VC-9C/C-9A/T-43A, C-22A/B)

NOTES

1. Oil analysis should only be used as a diagnostic tool, and alone is not justification

for engine removal. The presence of other indicators such as metal particles in the oil

filter must also be present.

2. Wear metal increase of oil sample is not reason for oil system to be drained and

flushed. Draining and flushing would only destroy the established wear metal

"Baseline" and hamper effectiveness of JOAP.

3. Sudden increase in silicon indicates dirt or sand has been introduced into the oil

system.

A68