EVA Tools and Crew Aids Panel Minutes of Meeting 29 Jan 2001
The EVA Tools and Crew Aids Panel met at JSC on January 29, 2001, in Building 1, Room 360, at 1:00 p.m. Representatives from the following organizations participated:
EVA Project Office
Hardware Development
Engineering Directorate
Crew and Thermal Systems Division
FCE EVA
Safety, Reliability and Quality Assurance Office
Hamilton Standard Management Services
Lockheed Martin
Panel members from the following organizations participated:
XA/Panel Chair, XA/Panel Secretary, DX3/EVA, Robotics, and Crew Systems, EC5/Crew and Thermal Systems Division, NA/SR&QA, and USA FCE/EVA.
The following items were presented:
- PRACA Status — NS43/T. Miller
Sixteen FIAR’s are open for EVA hardware. Eight FIAR’s were reported as past due and statused as follows:
JSCEC0796 — Active WIF Assy. Active WIF Control knob appeared to have increased force to operate.
To be closed by 1/26/01.
BFCE029F105 — PGT. Pistol Grip Tool chatter.
Will do interim thru 5A.1. Will wait to test again after hardware is flown again. If there is a problem on this flight, it could be a thermal vacuum problem. Wanting a second flight to determine there is no anomaly and close as "Explained".
JSCEC0842 — Modular MWS Gimbal. Fraying of end effector cord.
Doing minor design mods. New ECD 3/24/01.
JSCEC0841 — PFR Gimbal Assy. Roll joint buttons binding.
Unique to one unit.
JSCEC0846 — APFR. Rotation of collar is difficult/sticking.
Will have closed by next Tools Panel.
JSCER0033 — USA SAFER. NSI trace on oscilloscope appeared abnormal.
Closure in signature loop. CR in review. Will present to 2/5/01 Tools Panel. Anticipate closure 2/7/01.
JSCER0034 — USA SAFER. SAFER battery thermistor bad solder joints.
To close by 1/31/01.
JSCER0035 — USA SAFER. SAFER battery erratic current readings.
"Explained" thru 6A. Pending return of 1027 battery on-orbit. Will investigate further after return from 6A. Interims for STS-102 and STS-100 will be submitted.
No new FIAR’s were reported.
STS-98 FIAR’s were statused as follows:
JSCEC0849F — Safety Tether. Slow retract of tether.
In XA signature loop.
JSCEC0850F — Safety Tether. Discoloration of Safety Tether (fabric and hardware).
Presentation to be given at end of PRACA section.
One STS-102 FIAR was statused as follows:
JSCEC0839 — REBA Charger. REBA failed to show green LED during acceptance testing.
In XA signature loop.
The EVA hardware oldest FIAR, opened against the ORU Transfer Device (OTD), is 308 days old.
Also on the list of oldest FIAR’s is JSCEC0814 — TERA. TERA out of configuration.
This FIAR will be put on the past due list to flag. No ECD.
FIAR’s open by flight:
STS-98 2
STS-102 8
STS-100 8
STS-104 12
EC5/R. Schwarz presented a closure plan on the Safety Tether FIAR JSCEC0850F. The FIAR was written for discoloration/contamination of the load alleviator strap. Cause of the contamination is unknown. Analysis of long-term exposure of the safety tether to atomic oxygen/ultraviolet (AO/UV) environment and/or contamination will require disassembly/downgrade of two load alleviator straps. After materials are acquired for testing, the load alleviator/hook assembly from the 55-foot tether will be removed, and samples of the Teflon outer cover will be sent to EM for testing. The Nomex webbing will be visually inspected for contamination and/or AO/UV effects, and the metal swabbed with EM-provided materials for signs of contamination. The Load Alleviator Assemblies will be load tested, and the Teflon cover examined under the scanning electron microscope (SEM). The energy dispersive spectrometer (EDS) will be used to determine the elements that are present in the contamination. The Teflon cover will be examined using the infrared microscope to determine the molecules present. Safety Tethers S/N 1007 and 1008 cannot fly until the Load Alleviators are replaced. Samples need to be assessed and the 15-year certification of the strap verified.
The Chairman requested EC5 obtain concurrence for the proposed testing from EM/J. Holt.
The following action was assigned:
Action 1/29/01-1: Present findings from testing Load Alleviators and Sheaths.
Actionee: EC5/R. Schwarz
Due Date: 3/19/01
- Cert Status — NC52/G. Wright
There is one open certification item for STS-98, two open certification items for STS-102, and five open certification items for STS-100.
- Mission Hardware Status — LOC/K. Thomas
The Mission Hardware Status will be worked at the Weekly Integrator’s Telecon. Issues requiring support or elevation to the Tools Panel may be submitted.
- HITS Status Review — XA/J. Manning
The HITS Status was presented. Most STS-98 (5A) items have been delivered.
- H-0940 — Russian PWP Adapter — XA/M. Tullar
- H-0941 — SO LTA Cable Bags — DX3/R. Gauvreau
- Walk-on: SEEDS/Ham EVA Translation Frame Build and Certification Options — OM3/C. Conley
This CCBD requests development of a concept for integration of the Russian PWP to interface with either TREE or APFR. It was suggested that MOD generate a CR to demolish the existing Strela Grapple Fixture to cannibalize for the adapter. EC5/L. Bailey will gather data on the Russian PWP to verify that this interface is acceptable.
Decision: Route for technical concurrence.
This CCBD requests a ROM and schedule for SO LTA bags to installed on 7A.1. Three flight bags and three trainers are requested. Funds for this effort will be obtained via an ISS CR.
Decision: Route for technical concurrence.
The Russian side has grouped the four ISS Ham Antenna Systems with the SEEDS manifested on Progress. The OM3/ISS Russian Elements Office has been requested to provide a frame to accommodate this hardware. Options presented were:
- Russia build, certify and launch frame on Progress (Russian hardware only)
- ISS Ham build and certify frame for launch on Shuttle
- EVA Office build and certify frame for launch on Shuttle
- ISS Ham build and GSFC certify frame (funded by OM) for launch on Shuttle
- One side build and certify and the other side launch the frame
This request will be discussed off line to obtain EVA certification criteria.
- Pending CR Review — XA/D. Roberts
Pending CR’s were statused and dispositioned accordingly.
- Actions Review — XA/D. Roberts
The following actions were statused:
Action 8/28/00-2 — EC5/C. Chang: Modify drawings for Top Mounted Handrail Assy, SEG33106347, to clarify intent that existing inventory of -3XX handrails are acceptable for use, but future builds will be of the -8XX configuration.
Reassigned to EC5/D. Glebe.
Action 9/19/00-1 — EC5/C. Chang: Investigate Spacehab Discrepancy Notice on WIF Sockets.
CLOSED.
Action 8/28/00-3 — EC5/C. Chang: Provide plan for materials testing of returned OIH material and update of materials model.
Reassigned to EC5/D. Glebe.
Action 1/2/01-1 — EC5/K. Hostetler: Material selection for 5/32 Ball End Allen Driver.
CLOSED.
Action 11/6/00-2 — XA/D. Roberts: Evaluate CCBD and advise Tools Panel if this request is to proceed (Ref: H-0905 – CETA ICD Fitcheck Verification)
CLOSED. Overcome by events.
Action 10/30/00-1 — XA/D. Roberts: Work with EC5, MV5 and USA to determine appropriate solution to issue (Ref: Duplicate S/N’s on flight and Class III waist tethers and equipment tethers).
CLOSED. Overcome by events.
Action 11/13/00-3 — EC5/R. Schwarz: Determine if hardware exists and cost to provide tether point (Ref: H-0909 — Modify Inspection Mirror).
CLOSED.
Action 1/8/01-3 — EC5/R. Schwarz: Review and certify existing bag for ISS (Ref: H-0928 — Certify Airlock Stowage Bag for ISS Use).
CLOSED.
Action 1/8/01-2 — NC/G. Wright: Review ESEL’s through 7A.1 to identify what hardware needs ISS certification and provide to XA.
NC/Maureen Doughney reviewing.
No further items were submitted and the Tools Panel adjourned.
Submitted by: Approved by:
(Original signed by) (Original signed by)
________________________________ ________________________________
Harriett A. Attaway Dale R. Roberts
EVA Tools & Crew Aids Panel Secretary EVA Tools & Crew Aids Panel Chairman
Note: CARD changes are normally routed for concurrence after the Panel adjourns. Initiators are requested to be present or have representation for discussion of the change.
