I'm looking at flights EK348 and EK349 that go between PNH and DXB, with a stop in SIN. It's not clear to me if passengers exit the plane in SIN.
On the GLA-DXB-PNH portion of the flight it says "passengers change aircrafts when connecting" but on the second portion of the flight details, which is DXB-SIN-PNH it says "stop in Singapore 1 hr 45 minutes" but nothing about changing planes.