Airport comments by @akajono

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Wamena Elevation - GPS vs Altimeter Set to Low Elevation Air

The DGCA is updating airport elevations using survey-grade GPS units. Pilots arriving at Wamena with an altimeter setting from a low-elevation airport (Sentani, Timika, Nabire, Merauke) will notice a significant difference in elevation (altimeter will show closer to 5100’ at Wamena). This is mainly due to the errors associated with a pressure altimeter in higher-than-standard temperatures. For more information about this indicated vs true altitude error, see FAA AC 00-6B 5.4.1 “Altitude”, John S Denker “How It Flies” 20.2.4 < https://www.av8n.com/how/htm/atmo.html#sec-h-a-l-t> and Mike Borgelt’s article at http://www.borgeltinstruments.com/?page_id=259

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Where to Find Official Sentani Airport Information

To find official aeronautical data, go to:

https://aimindonesia.dephub.go.id/index.php?page=product-aip-electronik-vol123.html&id_aip=120

Alternatively, go to https://aimindonesia.dephub.go.id, register for a free account, and sign in. After logging in, in the left tab, go to Produk>>AIP Elektronik>Vol I, II, II>Vol II>AD 2>Sentani (or Jayapura). On that page, the default is the textual information. There's an upper tab that says "AIP Elektronik" or "Chart". Select "Chart" to see a listing of the airport diagrams, Instrument Approach Procedures, etc.

Cheers!