The cache is not at the posted coordinates. You will want to go to the helicopter gunship, the COBRA AH1F at the posted coordinates. This helicopter served in Germany, South Korea, and the USA.
The cache is at N 42 AB.CDE W 084 FG.HIJ
A = The number of seats +1
B = The number of letters in the branch of military the helicopter served in - 1
CDE = Max speed + 860
FG = Years in service + 20
H = The last digit in the year the helicopter was delivered to Charlotte - 4
I = Climb rate - 1920
J = First digit on the tail of the helicopter + 4
Enjoy the cache! Bring your own pen. An extraction tool may be necessary.