it's actually LNB with the dihedral tail and the usurping FNP (a P2).
Think you are quite correct,
On Eyre.
And for what it's worth; FNP was previous to that registration, P2-RDN with Talair, and from memory I once hitched a ride in that a/c from Madang back to Port Moresby way back in my (way too short
) taim bilong PNG.