Photos shared by the Htoo Foundation on Facebook showed the trio looking fit and well.
"All three of them walked for many miles" and reached Lan Sar village in northern Kachin state in the afternoon, foundation spokesman Phyo Ko Ko said.
The helicopter left Putao airport in Kachin state on September 27 to drop food for a team searching for two Myanmar mountain climbers who scaled Southeast Asia's highest peak on August 31. Phyo Ko Ko declined to say what happened to the helicopter.
The foundation's Facebook page said the helicopter pilot is Thai and works for an aviation charter company in Thailand.
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The others are a Myanmar pilot who was on the flight as a navigator and a Tibetan who is Tayza's personal assistant.
The two climbers reached the ice-capped summit of 5,881-metre Hkakabo Razi mountain before reporting that their radio battery was weak. They did not reach base camp by September 9 as scheduled.