Status Report

EVA Hardware Board (EHB) Minutes of Meeting August 15, 2001

By SpaceRef Editor
August 15, 2001
Filed under , ,

The EHB met at JSC on April 18August 15, 2001, in Building 1, Room 360, at 1:00 p.m. Representatives from the following organizations participated:

EVA Project Office

Hardware Development

Integration and Operations

Astronaut Office

Engineering Directorate

Crew & Thermal Systems Division

EVA and Spacesuit Systems



Hamilton Sundstrand Windsor Locks (HSWL) via telecon

Hamilton Sundstrand Management Services



EHB Board members from the following organizations participated:

XA/Chairman, XA/Secretary, XA/Tools and Crew Aids, XA/I&O, XA/EMU, XA/TRI, XA/Business Office, CB/Astronaut Office, DX32/EVS Systems Group, EA/Engineering, EC5/EVA and IVA Equipment, MV5/FCE EVA and NA/SR&QA.

The following items were presented:

  1. Hardware Integration Schedule XA/Barbara Counts

Changes to the schedule for STS-109 (HST-03B) include the PSA pull test slip to 9/21/01. The payload bay ship scheduled for 9/12/01 will move to an October date.

  1. PRACA Status NS43/Terry Miller

Twelve A total of eighteen (18) FIAR’s are open for EVA hardware and are shown by flight as follows:

STS-100 (6A) 0

STS-108 (UF1) 1

STS-109 (HST) 17

STS-110 (8A) 17

STS-111 (UF2) 17

The following action was assigned:

Action 8/15/01-1: MOD to confirm current operational constraints associated with OIH installation and review training procedures to assure that all training of astronauts is in accordance with the established procedures.

Actionee: DX32/Randy McDaniel

Due Date: 8/29/01

Two FIAR’s were reported as past due and statused as follows:

BFCE029F105 — PGT. Pistol grip tool chatter.

USA/Ernest Sanchez informed the EHB that during reassembly process of the PGT it was noticed that a thermostat was broken. It has not been established if this new failure was due to disassembly/reassembly procedures. A new closure date of 8/27/01 was assigned.

JSCEC0880 — Top Mounted Passive and Side Mounted Passive WIF Assemblies. Anodized surface is tacky and paint is flaking off.

The FIAR has been dispositioned for STS-108. Concentration is now on bake-out. If no firm date for closure can be established, a meeting will be held off-line to gather additional justification for closure.

No new FIAR’s were reported:

Updated status for STS-108 (UF1) FIAR’s will be provided to the 8/20/01 EVA Tools Panel and 8/22/01 EHB.

No FIAR’s are open for STS-100.

STS-104 (7A) FIAR’s were statused as follows:

JSCEC0839 — REBA Charger. REBA failed to show green LED during acceptance testing.

EC5/ Hiep Nguyen will be going to the contractor (Summit) 5/4/01.

JSCEC0863F — Modular Gimbal Assy. End effector is sticking/not closing (STS-98 anomaly).

EC5/Roger Schwarz reported that he is getting more information from Oceaneering. There may be a "broke" in configuration control. Getting story.

BFCE026A024 — High Strength Bridge Clamp. Unlock push button will not extend.

EC5/Roger Schwarz reported the hardware is going through vibe testing this week.

STS-105 (7A.1) FIAR’s were statused as follows:

BFCE029F105 — Pistol Grip Tool (PGT). PGT Chatter.

EC5/Roger Schwarz reported this FIAR is still unexplained. The PGT will be shipped for MPLM Bench Review the end of the month. Interims will be written within the next 2 weeks. Hardware is to be left on-orbit.

The Chairman requested a note be added to the status to show dates interims are needed, shipping on open DR, etc.

The EVA hardware oldest FIAR, against the 5/16" Hex Wobble Socket, is 600 days old.

  1. Certification Status NS22/Greg Wright

Open certification for STS-108 (UF1) includes the PFR bridge clamp and ORU transfer bags (large and medium). KSC is expecting shipment of the PFR bridge clamp on 9/13/01. XA/Aaron Mears will work this item. There are 13 open certification items for STS-109, with due dates to S&MA of 11/16/01. Open certification items for STS-110 (8A) include the SAFER, SAFER IVA battery, SAFER inhibit plus and tool assembly, and the TERA base assembly. XA/Rich Fair will add the MT energy absorber for TERA base assembly to the 8A Tools ESEL.

  1. EMU RDR and Certification Status NS22/Charles Sager

EMU RDR’s open by flight are as follows:

STS-108 (UF1) 21

STS-109 (HST) 1

STS-110 (8A) 1

A plan is in work to get two RDR closures per week to avoid last-minute failure reports before CoFR. The concern with not meeting RDR closure plans will be discussed with XA/Glenn Lutz.

There are six open certification items for STS-108 (UF1). ISS certification for the EMU middeck battery charger is in work.

There is no open certification for STS-109. Open certification for STS-110 (8A) is the SEMU, which requires a dash number change.

  1. On-Orbit Limited Life Status — NA/R. Toler

The On-Orbit Limited Life Status is scheduled for presentation on the 2nd and 4th Wednesday of the month. The next scheduled status will include a review of how to use the on-line system.

  1. USA Limited Life Status — USA/Nancy Jeanne Neason

  2. The USA Limited Life Status is scheduled for presentation on the 2nd and 4th Wednesday of the month.

  3. On-Orbit FIAR’s/DR’s — XA/Kristin O’Brien

XA/Kristin O’Brien presented the following updated list of hardware that needs to be replaced on-orbit and/or returned:

  • ORU Tether

  • Tether Reel

  • High Strength Bridge clamp

  • Push Button Articulating socket

  • MMWS Gimbal Assy

XA/Maria Tullar will coordinate with MOD to verify that they are in compliance with the requirements set forth in XA letter XA-01-150, "Constraints for On-orbit EVA Hardware" dated 7/11/01. This letter outlined constraints for the high strength bridge clamp, push button articulating socket, ORU tethers, and tether reel. There are no constraints for the MMWS gimbal assembly; this was dispositioned via the FIAR.

  1. Funds Transfer Status XA/Janice Hall

Funds reported transferred include the following:

H-0965R2 - ISS Block Buy of Microconicals and WIF’s – $51K

H-1019 - Fabric Purchases for EVA Bags and Gap Spanners – $20K

H-0913R1 - 5/16" Wobble Socket – $30K

— - Additional Funding for Sustaining Engineering – $218K

— - SSATA — Calibration Cost on 8’ Testing – $30K

— - Quick Disconnect FID Gauges – $10K

Funds for the ORU transfer bags and EMU Lab upgrade were transferred 8/15/01. Transfer of monies for the additional block buy is in work.

  1. EMU Rotation Plan (H7130) — HSWL/Donna Ray
  2. Revisions to the EMU Rotation Plan are normally scheduled for presentation the 4th Wednesday of the month; however, Hamilton Sundstrand will bring R5 to the 8/22/01 EHB.

  3. USA SAFER Flight Logistics Plan (H-0933) — XA/Anh Huynh

Revisions to the USA SAFER Flight Logistics Plan are scheduled for presentation the 4th Wednesday of the month.

  1. IFA Status — XA/Dale Roberts

IFA actions were reviewed and dispositioned as follows:

STS-104-9: Investigate findings reported on IFI TBD "In-suit EMU Battery Recharge Early Termination" and "Current display dropped at early termination anomaly" and report to EHB.

8/15/01: EC5/Joey Marmolejo presented an updated status on the EMU Battery Early Charge Termination. CTSD recommends the following:

  • Perform additional SSATA testing to acquire additional engineering data on the SPCE charge of advanced EMU batteries.

  • Return EMU battery from ISS that experienced early charge termination (S/N 2018)

  • Continue to monitor on-orbit chare of EMU batteries in ISS joint airlock to verify that anomaly is not charger or charger location dependent

Issues for implementation of plan include:

  • Number of SSATA tests will be expensive and will tie up the facility (3-shift operation, number of charge cycles could exceed 30)

  • SSATA and SPCE sustaining engineering budget cannot pay for this test type of investigation

  • Request funding from XA to perform tests — Unmanned ~$10K, manned ~$48K

It was the decision of the EHB that this battery will return on UF1.

DX3/Mike Hembree wanted to know when the discharge software will be uploaded. The decision to upload the software will be made by the ASCB.

This presentation will be forwarded to XA/Glenn Lutz for review and approval/disapproval of the plan.

EC5 also presented a status on IFI-TBD — ISS Airlock Oxygen Leak. This was not assigned as an EHB IFA. This status is presented for information only at this time. If required, an EHB IFA number will be assigned and the IFA tracked.

Decay of the GO2 supply pressure to the UIA was noted post EVA #3 and was ceased by the closure of the UIA isolation valves.

  • An anomaly resolution team lead by ISS ECLS and EMU/EVA is developing a troubleshooting procedure to attempt to isolate the minor leakage to EMU1, EMU2, or Orlan loops downstream of the isolation valves and correct it should it be isolated to an on-orbit replaceable SCU. A CHIT has been written for the crew to investigate.

STS-104-10: MOD update OCAD to document/control access of glove fingers into the interior of WIF’s. Take interim steps with 7A.1 crew to inform of potential concern.

8/15/01: SR&QA/Greg Wright has submitted the OCAD and MOD has accepted for implementation. Closure is pending concurrence of XA/Glenn Lutz.

  1. EHB Actions Status — XA/Dale Roberts
  2. This item was deferred.

  3. H7119 — ORU Tool Kit Design, Fabrication and Certification — ILC/M. Garza

This CCBD requests Hamilton Sundstrand (HS) to certify and transfer the spare ORU tools from H7112 to USA. Certification includes an EMUM by 9/14/01, with ORU change out rationale for Shuttle. Tools will fly in the EMU Servicing Kit on a Type "A" TPS to support HST. HS will also create an ORU tool kit complete with tools and components to be certified for 9A for Station, MPLM and Shuttle use. HS will also fabricate three (1 Station, 2 spare) Class I and two Class III (1 prototype and 1 training unit) ORU tool kits complete with tools and components as defined in the list of tools shown on the CCBD.

Decision: Route for technical concurrence.

  1. H7170 — New Configuration DIDB Certification/Implementation to Minimize Inadvertent Actuation — HS/Brian Marini

This CCBD requests HS to certify and implement the new configuration disposable in-suit drink bag (DIDB). The new configuration incorporates a silicone cone valve, which minimizes occurrences of inadvertent leakage. Certification will be accomplished by analysis of confidence test data of the new configuration. The Confidence Test Plan will be generated and submitted to CTSD for approval prior to performing confidence testing.

Per EC5/Bill Spenny, NASA defines requirements through the FEMU-R document. USA processing was not outlined and impacts were unknown; therefore, the CCBD was redlined to add a statement that any necessary FEMU-R requirements will be approved by a follow-on CCBD.

Decision: Route for technical concurrence.

No further items were brought forward, and the EHB adjourned.

Submitted by: Approved by:

(Original signed by) (Original signed by)

___________________________ ____________________________

Harriett Attaway Brian Johnson Dale R. Roberts

EHB Secretary Acting Acting EHB Chairman

SpaceRef staff editor.