EVA Tools and Crew Aids Panel Minutes of Meeting April 16, 2001
P>The EVA Tools and Crew Aids Panel met at JSC on April 16, 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
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, XA Integration and Operations, CB/Astronaut Office, DX3/EVA, Robotics, and Crew Systems Operation Division, CB/Astronaut Office, EC5/Crew and Thermal Systems Division, FCE/EVA, and NA/SR&QA.
The following items were presented:
- PRACA Status — NS43NS43/G. WrightTerry Miller
Fifteen Twelve FIAR’s are open for EVA hardware. Four One STS-100 (6A) FIAR was statused:
BFCE026A024 — High Strength Bridge Clamp. Unlock push button will not extend.
NFC submitted; rationale not acceptable. USA to rewrite and resubmit 4/16/01.
JSCEC0848F — Equipment Hook. Inadvertent Equipment Hook release.
PIA’s in work on everything with hook.
JSCEC0849F — Safety Tether. Slow retract of tether.
To do ROM to reduce length of tether. Once ROM received and crew/MOD concurs, FIAR can be closed. Unless found to be an overriding safety concern, no plans for mod or redesign.
JSCEC0841 — PFR Gimbal Assembly. Roll joint buttons binding.
Possible processing problem with dry lube application.
JSCEC0852 — Equipment Hook. Bail level sticking. Bail level did ot perform smoothly and did not stick open.
New build failed initial PIA.
CLOSED.
Preliminary closure in work. Still had chatter on 5A. Look at closing "as is".
EC5/B. Greene presented a FIAR Status on JSCEC0853F — Bayonet Receptacle.
STS-92 and STS-98 crew experienced excessive loads required to remove hardware from Bayonet Receptacles on the Modular Mini-workstation T-Bar and Swing Arms.
The following STS-104 FIAR’s were statused:
JSCEC0839 — REBA Charger. REBA failed to show green LED during acceptance testing.
Going to vendor end of March to get root cause closure.
JSCEC0841 — PFR Gimbal Assembly. Roll joint buttons binding.
Need to get with EM for root cause.
JSCEC0842 — Modular MWS Gimbal Assy. Fraying of end effector cord.
In work. Cost substantial.
JSCEC0781F — 5/16" Wobble Socket (HST). Socket detaching from PGT during STS-103 EVA.
Funded. Design change complete. Close out.
JSCEC0848F — Equipment Hook. Inadvertent equipment hook release.
Should have final by next week.
JSCEC0850 — Safety Tether. Discoloration of safety tether.
Test results by 3/19/01.
The following STS-104 SAFER FIAR was statused:
JSCER0035 — USA SAFER. SAFER battery erratic current readings.
Currently on-orbit. Will not get back until 6A lands. Will need month to do assessment.
The EVA hardware oldest FIAR, opened against the Adaptive Payload Carrier, is 547 589 days old.
FIAR’s open by flight:
STS-102 0
STS-100 (6A) 21
STS-104 (7A) 106
STS-105 (7A.1) 139
- Cert Status — NC52/Greg Wright
All certification is closed for STS-102.
There are three open SAFER hardware certifications for STS-100 — 2 on the SAFER IVA Battery (-305 and -307), and SAFER Battery upgrade. These are pending GCAR updates for closure.
There are 22 open hardware certifications for STS-104, all "green".All hardware certifications are closed for STS-100 (6A). There are 17 open hardware certifications for
STS-104 (7A); all work in progress. There are 10 hardware certifications for STS-105 (7A.1); Top Mounted Handrails (with MISSE Clamp) was reported as certified and will be removed from the list.
- Mission Hardware Status — LM/F. BlissFred Bliss
- Actions Review — XA/G. LeStourgeonDale Roberts
- Pending CR Review — XA/G. LeStourgeonDale Roberts
- HITS Status Review — XA/Jackie Manning
The following Mission Hardware Status was presented:
STS-102: All hardware has been delivered for flight.
STS-100: STS-98 hardware was received from USA on 3/2/01, and is being processed for the STS-100 Bench Review on 3/16/01. Roughly 20% of Bench Review hardware has been shipped. The other hardware will be sent as it is processed.
STS-104
All hardware for PLB ship for STS-104 was shipped on 4/4/01. The contractor is currently processing CEIT hardware scheduled for shipment on 4/17/01. The middeck hardware is also currently being processed for this flight. Approximately half of the hardware should be PIA’d by 4/18/01. The other half will be completed after the fitchecks are performed.
STS-105
Work has begun on processing hardware for the STS-105 MPLM Bench Review, scheduled for 5/15/01.
Scheduled ship date for these items is 4/30/01. Approximately seven items may not be ready for shipment until the week of May 7. These items are as follows:
LTA PWR Cable Bag (Port), SJG33114289-701, S/N 1001
LTA PWR Cable Bag (STBD/SO), SJG33114291-701, S/N 1001
LTA PWR Cable Bag (STBD/Z1), SJG33114292-701, S/N 1001
Modular MWS Gimbal Assy, SEG33110493-301, S/N 1003
Modular MWS Retracting End Effector, SEG33110492-301, S/N’s 1001, 1003, 1004
STS-109
Hardware that was needed to support a second STS-109 Crew FAM was ready for shipment on 4/10/01. The scheduled ship date was 4/11/01..
The following actions were statused:
Action 8/28/00-2 — EC5/David. Glebe. Modify drawing for Top Mounted Handrail Assy, SEG33106347, Rev E, Sheet 1, Flag Note 3, to clarify intent that existing inventory of -3 handrails are acceptable for use, but future builds will be of the -8 configuration. .
4/16: Still in work.
Action 8/28/00-3 — EC5/Gary Nickel. Provide plan for materials testing of returned OIH material and update of materials model.
4/16: To be discussed off-line with XA/Glenn Lutz.
Action 1/29/01-1 — EC5/Roger Schwarz. Present findings from testing Load Alleviators and Sheaths. Ref: FIAR JSCEC0850F — discoloration of Safety Tether.
CLOSED per 4/9/01 presentation by EC5/Lucie Johannes.
This item was deferred.
The weekly "stoplight" HITS Metric Report was provided. XA/Dale Roberts requested this item not be formally presented at this time. This report shows hardware and/or service/support delivered, on schedule, and not meeting planned delivery date or program need date.
This item was deferred.
- Gage Status — EC5/Kim Hostetler
- H-0959 – HST PFR Starboard APC Integration — XA/J. DuttonH-668R8 — Update STS-102 (5A.1) Tools ESEL (Post Flight) — XA/Aaron Mears
This status was not presented until the monththe first Monday of April.
The APC carrying the HST PFR, PFR extender and jettison handle had to be moved from Port Bay 13 to Starboard Bay 10. This CCBD requests fabrication of a new short shaft, drawing updates, loads models, and building up the starboard configuration to support HST PFR starboard APC integration for STS-109.This Revision 8 to the STS-102 Tools ESEL contains required updates to serial numbers and quantitiesand reflects actual on-0rbit hardware and ISS stowage locations.
Decision: Route for technical concurrence.
- H-0725R2 — Modify Camera Mount Assembly with Equipment Hook — Stop Work — XA/L. Crocker Update the On-Orbit Installed Handrail CARD, JSC-33405 — XA/Kristin O’Brien
This presentation reviews the CCBD request (H-0171R4) for updating the On-Orbit Installed Handrail CARD to allow for the use of non-torque specific EVA hardware to be used for installation.
This Revision 5 to the STS-100 ESEL contains required configuration updates. No quantity changes are included.
Decision: Route for technical concurrence.
- H-0668R7 — Update STS-102 (5A.1) Tools ESEL — XA/A. Mears
- H-0960 — STS-102 Open Tool-to-Tool Fitchecks — HSMS/J. Case
This Revision 7 to the STS-102 ESEL contains various serial number updates and deletes the return of SAFER’s and associated hardware.
Decision: The Chairman felt that updating the CARD to allow for non torque specific EVA hardware to install the OIH would be a good idea, depending on cost and schedule. A revision to the CCBD will be written.
H-858R1 — Update STS-102 Tool-to-Tool Fitcheck Matrix — HSMS/J. Case
This CCBD updates the STS-102 Tool-to-Tool Fitcheck Matrix to reflect the STS-102 Rev 7 Tools ESEL.
Decision: Route for technical concurrence.
This CCBD requests EHB concurrence on accepting the risk of not performing all tool-to-tool fitchecks for STS-102. Root cause of the inability to complete the fitchecks is late addition of tools to the flight, new hardware builds, and hardware logistics disconnects and planned operational use. Fitcheck status was presented to the STS-102 EVA FRR, held 2/27/01. In the future, all fitcheck status is to be documented prior to FRR.
Decision: Forward to 3/7/01 EHB.
- Extension of USA SAFER Sliders — ER/K. Lewis
Background: Due to the design of the Small EMU and EMU Planar HUT, some crewmembers may be unable to operate the manual isolation valve or deploy the HCM to initiate a self-rescue without extending the sliders forward.
This presentation is in response to action requirements contained in H-0906 – Extension of USA SAFER Sliders. The action called for ER to provide cost and schedule estimates for the following:
- Developing a viable design concept for moving the SAFER slider mechanisms forward 2 inches.
- Developing the detailed design, fabrication, and certification plan for the new concept.
- Retrofitting the Class I SAFER fleet and the Class III SAFER Engineering Unit with the modifications.
- Updating the required documents as appropriate.
A review of the SAFER drawing list has identified 49 drawings that will require modification or replacement to implement the change, with a possibility of more being identified during the design process. The structural redesign will require new stress and thermal analyses and a repeat of development and certification test programs.
Several issues were also brought forward. Modifications will require change of HCM deployment, causing SAFER to violate PRD stowed volume requirements, increasing weight, and increasing risk of inadvertent HCM deployment and Manual Nitrogen Isolation Valve closure.
At the ROM estimate of $4.130K, and the 2.5 years required to build and certify, ER has recommended not implementing this change.
CB/C. Nicollier requested data on reach evaluations and further evaluation or existing spreadsheet on length of time taken to reach sliders. The chairman suggested ER provide (to the EHB) the data on the negative loads margin due to the extension of the sliders.
Decision: Forward to 3/7/01 EHB.
- H-0917R1 — Revise STS-100 (6A) Tool-to-Tool Fitcheck Matrix — HSMS/Anthony Hall
This CCBD updates the STS-100 Tool-to-Tool Fitcheck Matrix to reflect the STS-100 ESEL Rev 7 requirements.
Decision: Route for technical concurrence.
- H-0967R1 — Revise STS-100 (6A) Open Tool-to-Tool Fitchecks — HSMS/Anthony Hall
- H-0977 — Baseline STS-108 (UF1) Tool-to-Tool Fitcheck Matrix — HSMS/Mark Elder
- H-0978 – New EVA Aid for ESP-2 on ULF1 (STS-113), WIF Extension for ISS SSCN 2605 — OX/Bill Bourgeois
This CCBD requests EHB concurrence on accepting the risk of not performing all tool-to-tool fitchecks for STS-100 (6A). There are open fitchecks between STS-100 (6A) tools that are going up on 6A and staying on-orbit to tools that are presently on-orbit. With the growing amount of on-orbit tools and the increasing number of flights, on-orbit tools will have open fitchecks.
Decision: Route for technical concurrence.
This CCBD requests baselining the STS-108 Tool-to-Tool Fitcheck Matrix, based on the STS-108 Tools ESEL H-0924.
Decision: Route for technical concurrence.
This CCBD requests a ROM and schedule to develop an EVA aid to assist the crew to access the FRAM H-fixture on the ESP-2 pallet.
Decision: The CCBD needs more work to define design requirements. XA/Dale Roberts will discuss this issue with OM/Chi-Min Chang.
No further items were brought forward, and the EVA Tools and Crew Aids Panel was adjourned.
Submitted by: Approved by:
(Original signed by) (Original signed by)
________________________________ ________________________________
Harriett A. Attaway D. G. LeStourgeonDale Roberts
EVA Tools & Crew Aids Panel Secretary Acting 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.
