Yes that would almost certainly be the place, Finncapt. The AN2 together with an AN24 were left stranded there in 1983 when the USMC used Pearl's as a staging post during the 1983 invasion. Pics of both these aircraft in a servicable condition at the time of the invasion can be found at:
TogetherWeServed - Cpl William Thompson IV
They remain to this day but to say the least, they are somewhat more 'shop soiled' now, 2007 pics at:
Panoramio - Photo of pearls airport,grenada.