Sherpa succeeded to break the record of 21 ascents of Everest set by Apa Sherpa and Phurba Tashi Sherpa, both of whom have already announced their retirement.
A year ago seven people lost their lives on the world's highest peak, while 449 summited from the Nepal side and at least another 120 made it to the top from the north side in Tibet. In past years, climbers would have to navigate the icefall two to three times, but now many have cut back, turning to other safer peaks with similar heights for their early training.
Kami Rita first scaled Everest at age 24, and has made the trip nearly every year since then. In the autumn, he guides clients to smaller peaks in Nepal.
Not far from the safety of the Everest Base Camp, the icefall is a climber's first real test: a treacherous 760-yard stretch of ice with shifting crevasses that has claimed the lives of about a quarter of those who have died on the Nepali side of the mountain, including 16 Nepali guides in 2014.
For the 44 year-old Lhakpa is the ninth time on the highest point of the earth, a female record that beats the record set by herself a year ago.
Apart from Kami, dozens climbed the mountain Wednesday, Shrestha said from the Base Camp.
According to alpinist and mountain chronicler Alan Arnette, who year is following the events on the highest mountain on in the world this year for the United States magazine Outside Online, at an altitude of 8500 meters 10 of the 39 regulators used by clients and Sherpa suddenly stopped working.
Meanwhile, a 69-year-old double amputee climber from China flew on a helicopter from Everest to Kathmandu on Wednesday, two days after climbing the mountain.
Summits are underway every day since May 13 after the eight rope-fixing team members opened the climbing route for all climbers.
She joined her first Everest expedition in 2000.
More than 340 climbers will attempt the Everest summit in the coming weeks.
His son Xia Dengping, who was with him at the airport, told reporters his father is a hero.