The seven-hour space work ended at 8:25 pm Saturday (0225 GMT Sunday), as spacewalkers Mike Lopez-Alegria and John Herrington continued the task of outfitting of a newly-installed truss segment.

The space station's railcar, or Mobile Transporter (MT) stalled unexpectedly about three meters (yards) short of its intended destination.

Herrington spotted a stowed communications antenna that had snagged a trailing umbilical mechanism on the MT, halting its motion.

He then deployed the antenna, freeing the MT, which was securely latched into its proper location.

As Herrington worked to fix the snafu, Lopez-Alegria was installing 33 spool positioning devices -- the original purpose of the walk.

From onboard Endeavour, pilot Paul Lockhart coordinated the two spacewalkers' efforts, providing them with visual cues as they moved around the station.

This was the third and final space walk on Endeavour's 11-day mission to the station, which departs the space station for Earth on Monday.

Meanwhile, inside the station which was handed over to the three-man replacement team Friday, the old and new teams worked to solve a blackout of one of the station's research bays.

Endeavour will take the old three-person crew home. The new crew is expected to remain on the station until March 2003.

SPACE.WIRE