Status Report

XA/EVA Project Office Weekly Activity Report November 9, 2000

By SpaceRef Editor
November 9, 2000
Filed under

Enhanced Caution and Warning System (ECWS)

A successful Preliminary Design Review (PDR) was held on November 2, 2000, for the Enhanced Caution and Warning System (ECWS). The ECWS is being developed as a replacement for the existing Caution and Warning System (CWS), which starts going out-of-life in the fall of 2003.

Major topics discussed were systems, software, electrical and mechanical design, manufacturing, testing, logistics, cost and schedule. A preliminary version of the PC-based ECWS simulator was demonstrated. In general, the technical program seems to be well beyond the 10 percent expected at PDR.

Review Item Dispositions (RID’s) are being accepted through November 9, 2000, and a RID review will be held by November 16, 2000.

University Engineering Research Summit

A new initiative sponsored by NASA headquarters, General Sam Armstrong, is planned to improve interaction between NASA Centers and academia. On November 2, 2000, the EVA Project Office presented advanced EVA technology challenges and opportunities to an audience of faculty and management from a diverse group of U.S. universities. Other speakers from JSC discussed a broad cross section of all human oriented research topics during this initial coordination event. Starting in FY02, the potential exists for a significant infusion of university oriented funding to foster this research initiative.

STS-110/8A S0 On-Orbit Constraints Test (OOCT)

The EVA Project Office supported part one of the S0 OOCT from November 2-6, 2000, at KSC. The purpose of the tests is to verify cable lengths, connector clocking and the ability to mate connectors on the S0 port forward umbilicals trays. During ISS assembly there are four forward trays, i.e., two avionics trays and two fluid trays that will be mated to the Lab. These trays are launched on S0 (STS-110/8A) and are installed on the Lab port and starboard locations. The fluids trays are stacked on the avionics trays on STS-124/10A. Connectors from these trays are mated to the S0, Lab, and Node 2. Part one of the OOCT verified mating of the S0 port forward avionics tray and its connections to the Lab, S0 and Node 2. Part one testing was overall a success since we could mate all connectors. Crew squawks or problem reports were written and the issues will be worked with the ISS Program.

Part II of the testing continues from November 6-8, 2000, to ensure the S0 fluid umbilicals can mate to S0 and Node 2.


The EVA CoFR1 for STS-98/5A was successfully completed in support of the LPRR and ORMR. STS-98/5A is ready to rollout and proceeds with launch package integration subject to identified open work. There are still a number of EVA fit checks scheduled to be conducted. Additionally, the EVA sharp edge inspections also need to be completed. Several actions were assigned at the EVA CoFR1. The EVA Project Office will pursue manifesting the incapacitated crewmember rescue detailed test objective on the flight since it was not conducted on STS-92. Two get-ahead tasks were recommended for additions to the flight: 1) modifying an articulating portable foot restraint, and 2) an Interoperable Articulating Portable Foot Restraint to remove the thermal cover that interferes with installation in some side mounted worksite interfaces and returning three items of EVA hardware no longer needed on ISS. These changes will be discussed at the STS-98 flight Integrated Product Team meeting.

External Stowage Platform-2 Attachment Device (ESPAD) Design Review

The EVA Project Office supported the ESPAD design review on October 31, 2000. The focus of this meeting was to evaluate the airlock strut interface and the EVA-deployable strut used to secure the ESPAD. The design and fabrication of this component is on a very fast-track schedule to support installation on the ISS airlock in December 2000. From an EVA perspective, the ESPAD strut and socket design, presented by Oceaneering Space Systems, is excellent and only very minor comments were submitted to the designers.

Original Signed By:

G. Allen Flynt

Deputy Manager

SpaceRef staff editor.