[cantankrs]

Hi,

Wondering if anyone has any info they could share on our F15. A little while back I noticed its civvy paint had peeled enough to spot an ARN and some careful poking with a screwdriver or something (sanding was useless) revealed some more.
Thankfully the number was repeated at an angle across the right vent and I'm pretty sure the first number is a '5'.

Thanks

Alex