CORRECTED: European lab spacewalk delayed for a day

(Corrects to “two of three spacewalks planned” from “the three spacewalks planned” in paragraph 6)

By Irene Klotz

HOUSTON (Reuters) - U.S. space shuttle Atlantis arrived at the International Space Station on Saturday, but the installation of its primary cargo, a European science laboratory, will be delayed for a day due to an astronaut health problem, NASA said.

Space agency officials would not disclose who was ill or what the problem was, but said German astronaut Hans Schlegel, 56, would not take part as planned in the spacewalk to attach the lab to the station.

He will be replaced by fellow Atlantis crewmember Stan Love, said mission management team leader John Shannon.

The installation of the $1.9 billion Columbus lab, Europe's main contribution to the $100 billion space station, will take place on Monday instead of on Sunday, Shannon said in a briefing at Johnson Space Center in Houston.

NASA rules prevent much disclosure about astronaut health problems, but Shannon said the illness "is not life-threatening."

Schlegel flew on a shuttle in 1993 and was scheduled to take part in two of the three spacewalks planned for this mission. His status for the rest of the flight was unclear.

News of the delay followed Atlantis' docking with the station 200 miles above Earth on Saturday, ending a two-day orbital journey that began on Thursday with launch from Florida.