(CNN)  -- An extradition hearing is expected in Spain this week for one of two pilots arrested recently on charges they participated in "death flights" in which more than 1,000 prisoners were thrown out of planes during Argentina's "dirty war" in the 1970s and 1980s, officials said. Hebe de Bonafini, left, and members of Madres de Plaza de Mayo hold a demonstration in 2006. Former Navy Lt. Julio Alberto Poch, who has been held in Spain without bail since his arrest in Valencia in late September, will have a hearing before a high court in Madrid, a judge in Valencia ruled. An Argentine judge has asked that Poch be sent back to face long-standing charges from the 1976-83 right-wing dictatorship.
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Former Navy Lt. Julio Alberto Poch faces charges from the 1976-83 dictatorship
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In Argentina, police arrested former Navy Capt. Emir Sisul Hess last week
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Pair accused of piloting aircraft from which prisoners were thrown to their deaths
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Prisoners include those who had run afoul of the dictatorship over political views
@placeholder had been a navy pilot from 1976 until late 1980, Telam said.