ISS Cooling System Repairs Complete | Aero-News Network
Aero-News Network
RSS icon RSS feed
podcast icon MP3 podcast
Subscribe Aero-News e-mail Newsletter Subscribe

Airborne Unlimited -- Most Recent Daily Episodes

Episode Date

Airborne-Monday

Airborne-Tuesday

Airborne-Wednesday Airborne-Thursday

Airborne-Friday

Airborne On YouTube

Airborne-Unlimited-07.07.25

Airborne-NextGen-07.08.25

AirborneUnlimited-07.09.25

Airborne-FlightTraining-07.10.25

AirborneUnlimited-07.11.25

Mon, Aug 16, 2010

ISS Cooling System Repairs Complete

Third Spacewalk Finishes Installation Of Spare Ammonia Pump

Flight Engineers Doug Wheelock and Tracy Caldwell Dyson completed the third contingency spacewalk to install a spare ammonia pump module on the S1 Truss at 1340 EDT Monday. Flight Engineer Shannon Walker assisted the spacewalkers from inside the International Space Station and operated the Canadarm2.


NASA Image

The 780-pound spare pump module was removed from an external stowage platform by Wheelock while working from the Canadarm2. The module was successfully installed on the S1 Truss after Wheelock attached four bolts and Caldwell Dyson mated five electrical connectors.

Ground controllers confirmed the module was in healthy condition when it began receiving power. After a pressure check and more fluid cable connections, the module was filled with ammonia.

Wheelock and Caldwell Dyson were outside during the third repair spacewalk for 7 hours, 20 minutes. On Wednesday they were outside during the second spacewalk for 7 hours, 26 minutes. The first repair spacewalk took place Aug. 7 and lasted a record 8 hours, 3 minutes.

After the original pump module failed July 31 ground controllers powered down numerous station systems and readjusted them to provide maximum redundancy. Mission managers and astronauts on the ground also quickly began choreographing the contingency spacewalks and planning repair procedures. The spacewalks were planned several days apart to give crew members time to rest and managers on the ground time to review data and make necessary adjustments.

The spare ammonia pump installed was delivered aboard space shuttle Discovery and stowed on an external stowage platform in July 2006. STS-121 Mission Specialists Piers Sellers and Mike Fossum performed the transfer work during a 6-hour, 47-minute spacewalk.

FMI: www.nasa.gov

Advertisement

More News

NTSB Final Report: Aviat A1

Airplane Bounced About 3 Ft Then Touched Back Down And Then, With No Brakes Applied, The Airplane Began Veering To The Left Analysis: The pilot entered the airport traffic pattern >[...]

ANN's Daily Aero-Linx (07.08.25)

Aero Linx: British Microlight Aircraft Association (BMAA) The primary focus within all aviation activity is SAFETY. In all aspects of our sport SAFETY must come first, whether it b>[...]

Classic Aero-TV: Fly Corvair’s Reliable Engine Alternative

From SnF25 (YouTube Edition): William Wynne Builds Practical Aircraft Engines on the Corvair Platform Seeking an affordable alternative to the traditional aircraft engine options, >[...]

ANN FAQ: Contributing To Aero-TV

How To Get A Story On Aero-TV News/Feature Programming How do I submit a story idea or lead to Aero-TV? If you would like to submit a story idea or lead, please contact Jim Campbel>[...]

Classic Aero-TV: CiES Fuel-Quantity and e-Throttle Systems Praised

From 2023 (YouTube Edition): Bridge of CiES CiES Inc. is a Bend, Oregon-based designer and manufacturer of modular embedded aircraft systems and sensors. The company’s fuel-l>[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

© 2007 - 2025 Web Development & Design by Pauli Systems, LC