XA/EVA Project Office Weekly Activity Report November 2, 2000
Boeing Huntington Beach Truss Segment S0 and S1 Fluid Line Routing Test
The EVA Project Office supported testing which included five fluid installation worksites on S1 and S0. Preliminary results were acceptable for the .25″ vent panel jumper, the 1.5″ segment-to-segment jumper installation, and the 1.5″ pump module installation at 0 and 360 psi. Two Thermal Radiator Rotary Joint (TRRJ) torque box routings did not fare well for soft dock insertion at 360 psi. Suggestions by the crew included reducing the pressure to between 150 and 250 psi, develop an insertion tool, use two crewmen, and/or lubricating the hose before flight. A total of 4 Female Interlock Defeats were induced during testing. Due to hardware difficulties with the QD’s, the snap back “reset” of the quick disconnect (QD) was not straightforward. Another issue involved malfunctioning test QD’s. Boeing was requested to complete a failure investigation and determine its relevance to flight hardware. A CR is in work to require pressurized testing of all flight QD’s at KSC pre flight. The crew consensus report is due out in three weeks, which will contain the final dispositions on each of worksites and tools evaluated.
During off line Huntington Beach Human Thermal Vacuum (HTV) testing Phase 1, the crew completed their evaluations of both the QD Bail Drive Tool and the Bail Drive Lever. The bail drive tool actuated the bench top valve, however the tool displayed a tendency to jump off the valve while being run by a Pistol Grip Tool (PGT). It was also found not to fit on the TRRJ interface. The Bail Drive Lever was also evaluated on the same valves and locations. It was successful in actuating the valves in all locations and proved to be very EVA friendly. Pending the official crew consensus report, the EVA Project Office will proceed with the development of the Bail Drive Lever and reevaluate the necessity of the QD Bail Drive Tool.
Increment 2 Training Completed in Russia
The Increment 2 Prime and Backup Crews have completed their third Hydrolab training session. The training session included 2 engineering runs and 6 training runs beginning October 11th. Increment 2 was trained to perform two EVA’s to activate Docking Compartment 1, which includes installation of the second Strela unit, high and low frequency Kurs cable connections, and the installation of Kurs antennas and docking targets. In addition to these EVA’s, the crews received training to perform the docking cone transfer in the Service Module transfer compartment.
ExPRESS Pallet PDR
The EVA Project Office supported and assisted with the design of the ExPRESS Pallet at the ExPRESS Pallet PDR in Sao Jose dos Campos, 10/25-27/00. Currently, the Pallet is being designed to be flown up on ISS UF-3 and stowed on the S3 Truss segment of ISS. It will fly up with 6 Payloads, but will have the capability of stowing either Payloads or Launch on Need ORU’s. The long-term goal will be to have two ExPRESS Pallets mounted side by side on S3. All Payloads and ORU’s will be primary EVR removable with EVA as a secondary capability.
STS-92 In-Flight Anomalies (IFA) Review Summary
The EVA Project Office conducted an IFA review after the flight of STS-92. Nineteen items were identified as off nominal and reviewed by the EVA community. Of these issues four were determined to be In-Flight Anomalies (IFA) and will be taken forward to the Space Station Program as issues needing resolution prior to the next flight. The four issues are the anomalous performance of the Mid Deck EMU battery charger, the Pistol Grip Tool “chatter” during torque operations, the interference fit of the APFR on the side mounted WIF, and the Modular Mini work station sticking in position during EVA. The remaining issues are being tracked internally though the EVA Hardware Board for proper disposition but did not warrant upgrade to a programmatic IFA.
Original Signed By:
G. Allen Flynt for
Gregory J. Harbaugh
Manager
