EVA Tools and Crew Aids Panel Minutes of Meeting 5 Mar 2001
The EVA Tools and Crew Aids Panel met at JSC on March 5, 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, EC5/Crew and Thermal Systems Division, NA/SR&QA, and USA FCE/EVA.
The following items were presented:
- PRACA Status — NS43/T. Miller
Fourteen FIAR’s are open for EVA hardware. Three FIAR’s were reported as past due and statused as follows:
BFCE029F105 — PGT. Pistol Grip Tool chatter.
EC5 to present plan and new ECD to 3/12/00 Tools Panel. No activity to report at present; waiting for Crew Debrief, scheduled for 3/6/01.
JSCEC0848F — Equipment Hook. Inadvertent Equipment Hook release.
Functional testing in work.
JSCEC0849F — Safety Tether. Slow retract of tether.
On hold. Pending decision from XA/G. Lutz to redesign or leave "as is".
No new FIAR’s were reported. No FIAR’s are open for STS-102.
The following FIAR was statused for STS-100:
JSCEC0853F — Bayonet Probe. Unsatisfactory fit of bayonet probes to bayonet receptacles.
Need to look at MMWS for 6A. XA/L. Crocker suggested getting a team together for long-term solution. EC5 to investigate technical fixes.
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 days old.
FIAR’s open by flight:
STS-102 0
STS-100 2
STS-104 10
STS-105 13
- Cert Status — NC52/G. 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".
- Mission Hardware Status — LM/F. Bliss
- Actions Review — XA/G. LeStourgeon
- Pending CR Review — XA/G. LeStourgeon
- HITS Status Review — XA/J. 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 was delivered to support the Airlock Bench Review, scheduled for 3/2/01.
This item was deferred.
This item was deferred.
This item was deferred.
- Gage Status — EC5/K. Hostetler
- H-0959 – HST PFR Starboard APC Integration — XA/J. Dutton
This status will not be presented until the month 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.
Decision: Route for technical concurrence.
- H-0725R2 — Modify Camera Mount Assembly with Equipment Hook — Stop Work — XA/L. Crocker
Three Camera Mounts have been reconfigured with the -302 Equipment Hook per Rev 1 of this CR. No additional work is to be done to reconfigure the remainder of the fleet. A new EVA Camera Mount has been developed that the crew prefers. USA is to keep three Camera Mounts, P/N 10159-10009-04, in USA inventory for use until the remainder of the new Camera Mounts are delivered.
Decision: Route for technical concurrence.
- H-0648R5 — Revise STS-100 ESEL (ISS 6A) — XA/R. Fair
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-858R1 — Update STS-102 Tool-to-Tool Fitcheck Matrix — HSMS/J. Case
- 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: Route for technical concurrence.
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.
No further items were submitted and the Tools Panel adjourned.
Submitted by: Approved by:
(Original signed by) (Original signed by)
________________________________ ________________________________
Harriett A. Attaway D. G. LeStourgeon
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.
