Given the task definition and input, reply with output. In this task, you're given a passage, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.

Passage: Mulgrew Nunatak () is a prominent nunatak, 1,600 m, standing four nautical miles (7km) east of Tentacle Ridge in the Cook Mountains. Its summit, standing at , is named Peter Crest. The nunatak was first mapped by the Darwin Glacier Party of the Commonwealth Trans-Antarctic Expedition (195658). Both it and its peak were named for Peter D. Mulgrew, a New Zealand adventurer who accompanied Sir Edmund Hillary to the South Pole and served as the chief radio operator at Scott Base. He perished in the Air New Zealand DC10 scenic flight to Ross Island, 28 November 1979, when the airplane crashed near Te Puna Roimata Peak ("spring of tears" peak) on the northeast slope of Mount Erebus, killing all 257 persons aboard.
Link Information: none Question: Who piloted the airplane that killed Mulgrew Nunatak in 1979?
Answer: none