EVA Hardware Board (EHB) Minutes of Meeting August 1, 2001
The EHB met at JSC on April 18August 1, 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
SR&QA
FCE/EVA
Hamilton Sundstrand Windsor Locks (HSWL) via telecon
Hamilton Sundstrand Management Services
USA
Lockheed
EHB Board members from the following organizations participated:
XA/Chairman, XA/Secretary, XA/Tools and Crew Aids, XA/EMU, XA/IMT, CB/Astronaut Office, EA/Engineering, EC5/EVA and IVA Equipment, MV5/FCE EVA and NA/SR&QA.
The following items were presented:
- Hardware Integration Schedule — XA/Aaron Mears
Changes to the schedule include the following:
STS-104 (7A)
- Standard return ship has slipped to 8/2/01.
STS-108 (UF1)
- MPLM JSC Bench Review #2 is scheduled for 9/7/01.
- MPLM KSC Bench Review #2 on-dock delivery is scheduled for 9/11/01.
- CEIT ship is 9/14/01.
- MPLM KSC Bench Review #2 is scheduled for 9/25/01.
- CEIT for STS-108 (UF1) is pending CR sign-off.
- 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-105 (7A.1) 91
STS-108 (UF1) 14
STS-109 (HST) 17
STS-110 (8A) 17
Five FIAR’s were reported as past due. The following were statused:
JSCEC0781 — 5/16" Wobble Socket (HST). Socket detaching from PGT during SGTS-103 EVA.
An updated status will be presented to the 8/6/01 EVA Tools Panel.
JSCEC0880 — Top Mounted Passive WIF Assemblies. Anodized surface is tacky and paint is flaking off.
Closure rationale is being routed for concurrence, pending review by XA/Glenn Lutz. A clarification of procedures is required.
JSCEC0883 — PFR. While performing PIA, the roll push button was sticking.
Hardware has passed vibration testing. Thermal testing is scheduled to be performed 8/10/01. A new ECD of 8/13/01 was assigned.
JSCEC0886 — Top Mounted Handrails. Discoloration found inside handrail bracket tube and powdery substance found to be aluminum oxide during PDA.
An updated status on the handrail bracket corrosion FIAR was presented by EC5/David Glebe. At the 7/30/01 EVA Tools Panel status of this FIAR, it was determined that suspect handrails will be recalled and inspected for corrosion, and corroded brackets will be replaced if analysis and testing cannot determine whether or not corroded handrail brackets are safe to use during EVA.
In a telecon held with Aacron and Campbell Engineering earlier this week, Mr. John Ledine of Aacron confirmed that this corrosion is a common problem, which takes place during metal finishing and then stops. An inspection by EM has found the following:
- The "white powder" is remnant of the anodizing process.
- As long as the bracket is not pitted, then the white powder can be removed, and the bare aluminum surface can be "prepped" and alodined.
- If the bracket is pitted, then chances of completely removing/neutralizing the corrosion are not good.
- So far, the original bracket (that was dissected) is the worst bracket that has been examined (one bracket from each or the examined build sets have been examined.
A clear plan needs to be developed to assure that there are adequate quantities to ship out as replacements on UF1. Additionally, details need to be finalized on clean-up and inspection procedures, as well as a method of determining which brackets to "scrap" vs. "use as is". A meeting will be held with XA management to devise a plan of closure before presentation to the SSP Daily on 8/2/01.
JSCEC0874 — T-Handle. STS-100 anomaly — sticky actuation of ball.
A demonstration by EC5/Kim Hostetler shows this hardware may be "technique sensitive". Closure will include a direction for MOD to train the crew and will require concurrence by DX32/Randy McDaniel.
One new FIAR was reported:
JSCEC0889 — MMWS Gimbal Assembly. Potential failure of screws on MMWS gimbal assembly, as identified per OSS structural analysis report.
ISOD in question.
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 oldest FIAR, against the 5/16" Hex Wobble Socket, is 586 days old.
- Certification Status — NS22/Greg Wright
All certification is closed for STS-105 (7A.1). Open certification for STS-108 (UF1) includes the PFR bridge clamp, body restraint tether (BRT) and SAFER. BRT and SAFER certification are pending ESEL updates. There are 13 open certification items for STS-109, with due dates to S&MA of 11/16/01.
- EMU RDR and Certification Status — NS22/Charles Sager
EMU RDR’s open by flight are as follows:
STS-105 (7A.1) 0
STS-108 (UF1) 24
STS-109 (HST) 1
The PSA 28V utility adapter open certification for STS-105 (7A.1) was a late turn-on item. There is one remaining test, and given a good outcome, paperwork will go to S&MA on Friday, 8/3/01. There are two open certification items for STS-108 (UF1). The athletic support assembly will be demanifested on the UF1 ESEL Revision 2; MAG’s are being used. The in line voltage regulator CR will be revised. There is no open certification to report for STS-109.
- On-Orbit Limited Life Status — NA/R. Toler
The On-Orbit Limited Life Status is scheduled for presentation the 2nd and 4th Wednesday of the month.
- USA Limited Life Status — USA/Nancy Jeanne Neason
- On-Orbit FIAR’s/DR’s — XA/Kristin O’Brien
- Funds Transfer Status — XA/Janice Hall
The USA Limited Life Status is scheduled for presentation the 2nd and 4th Wednesday of the month.
This item was not presented.
No funds were transferred this reporting period.
- EMU Rotation Plan (H7130) — HSWL/Donna Ray
- USA SAFER Flight Logistics Plan (H-0933) — XA/Anh Huynh
Revisions to the EMU Rotation Plan are scheduled for presentation the 4th Wednesday of the month.
Revisions to the USA SAFER Flight Logistics Plan are scheduled for presentation the 4th Wednesday of the month.
- IFA Status — XA/Dale Roberts
IFA actions were reviewed and dispositioned as follows:
Action STS-100-1: Sticky T-Handle Tool.
CLOSED. FIAR opened 5/14/01.
Action STS-104-2: Review contents of on-orbit hazardous material clean-up kit and make recommendations for mods based upon hazards associated with EMU concerns.
8/1/01: Actively working. May not have hardware for 7A.1.
Action STS-104-5: Initiate DR on RET’s returned on STS-104 (7A) to determine which serial number was discrepant, if possible.
Per EC5/Roger Schwarz, RET’s are not back from 7A.
Action STS-104-11: Report status of EMU middeck battery charger ISS certification effort and task to provide capability for 7A.1.
Per EC5/Charles Sager, USA/Chris Goldin has located a place to plug in the charger. Certification effort is being worked.
- EHB Actions Status — XA/Dale Roberts
- H-0942R1 — Revise TGA CARD JSC-40058 and Update Certification Information on GCAR — EC5/Ralph Marak
- Analysis Results: 18-Inch Moment Arm Certification for MMWS – EC5/Ben Greene
This item was deferred.
This CCBD requests revising the TGA CARD to change the operational life from 15 years with maintenance to 10 years with maintenance, and updates the GCAR to change certification from ISS flights 5A through 7A to 10 years on-orbit with maintenance and 1 year on-orbit without maintenance.
Decision: Route for technical concurrence.
This item was presented to the 7/30/01 EVA Tools Panel and the information provided to XA/Glenn Lutz. A CR to resolve this issue is to be initiated and presented to the 8/6/01 EVA Tools Panel.
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
