Tinny,
Sorry for my absence! Been celebrating daughter's 30th in another place.
Now, it's certainly NOT OMK!! If you turned a Boo in the parking bay at the top of the hill there, the wing-tip would gouge the hillside!
All my being says it's Chimbu prior to the runway works and perhaps the gravel layer which used to create spectacular enveloping dust cloud in full reverse. That's a best guess if the slope behind and the ridge in the top l/h corner is where the Waghi turns around to flow past OMK. However, still some doubt. The fuselage would have to be hiding the Leslie's house on the eastern side of the strip.
Best I can do. All my PNG slides were lost in a recent house-flood!!
G'day