The helicopter was carrying three people, including a Thai pilot.
According to Htoo Foundation, the chopper left Putao airport in Myanmar's northern Kachin state yesterday to drop food for a team searching for two Myanmar climbers missing since August 31. The foundation is leading the search effort for the climbers.
An eight-member team set out to climb the 5,881-metre Hkakabo Razi mountain last month, but only two went up the final stretch due to the narrow nature of the summit, reaching the ice-capped mountaintop on August 31.
The search for the climbers involved helicopters from Thailand, the US and China as well as other mountaineers.