Almost 100pc that its 48-717.
Checking the ARN lists:
48-117 seems to be a GS.
49-117 seems it is a FFR.
49-717 seems it is a FFR.
48-717 seems it is a FFR.
..if you then check 48-717 notes it has a AWM library pic from Somalia: "AWM ref P01735.112. Also A Landing Craft Medium lands troops and vehicles ashore at Tahira Wharf, Papua New Guinea, on the morning of the Amphibious phase of Exercise Olgeta Warrior 2009. AFM April 2014 Auction, NSW. Incomplete and not operational (due to AQIS post OS Deployment?)"
When I "photoshop" scrutinise the photo, its a closed case, def 48-717.