EVA Tools and Crew Aids Panel Minutes of Meeting May 21, 2001
The EVA Tools and Crew Aids Panel met at JSC on May 21, 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 & Operations, XA Integration and Operations, CB/Astronaut Office, 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 A total of fifteen (15) FIAR’s are open for EVA hardware. Four One FIAR was reported as past due and statused as follows:
JSCEC0853F — Bayonet Probe. STS-92 and STS-98 anomaly reported by crewmember — unsatisfactory fit (tight fit) of bayonet probes to bayonet receptacles.
Closure on this FIAR is with SR&QA/Greg Wright.
No new FIAR’s were reported.
STS-104 (7A) FIAR’s were statused as follows:
JSCEC0869 — EHIP Light Assy. EHIP Light Assembly has low outward actuation force at post thermal functionals.
EC5/Roger Schwarz will coordinate with SSM on closure rationale.
JSCEC0873 — Retracting End Effector. At PIA, the cord measured out of specifications and a disassembly of the Spool Pack Assembly was performed, which identified the loose anchor pin inside of the Spool Pack.
Per EC5/Roger Schwarz, to have interim by COB.
JSCEC0874F — T-Handle. STS-100 anomaly. Sticky actuation of ball.
This FIAR will be addressed in CoFR2 charts 5/22/01 if interim is not written by COB.
No USA SAFER FIAR’s are open for STS-104 (7A).
STS-105 (7A.1) FIAR’s were statused as follows:
JSCEC0851 — General Purpose Cutter (GPC). GPC handle does not lock with torque spec of 10-40 lbs.
A CR to roll the dash number is due from EC5. An interim closure is in place.
JSCEC0860 — Body Restraint Tether (BRT). BRT will not stay stabilized after tensioning.
No update; to have interim next week.
BFCE026A024 — High Strength Bridge Clamp. Unlock push button will not extend.
USA FCE/EVA has closure written.
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 547 624 days old.
FIAR’s open by flight:
STS-102 0
STS-104 (7A) 103
STS-105 (7A.1) 138
STS-108 (UF1) 14
STS-109 (HST) 15
- 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".There are 11 open hardware certifications for STS-104 (7A). The Hydrazine Detector, Draeger will be given a new name and number. All REBA items are pending GCAR signature (late today or tomorrow). A waiver will be written to accept the SAFER Stowage Bag as is.
There are two hardware certifications for STS-105 (7A.1). A waiver will be written for the 5/24/01 PRCB for the EVA Winch and Mount Assy, (Aft and Fwd) for two flights.
There is no open hardware certification for STS-108 (UF1).
- Mission Hardware Status — LM/F. BlissFred Bliss
- Actions Review — XA/G. LeStourgeonGreg LeStourgeon
- Pending CR Review — XA/G. LeStourgeonGreg LeStourgeon
- 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.
It was reported that the EHIP light was sent to USA FCE/EVA for fitcheck, which has not been done. The hardware is needed back at Lockheed.
Additionally, the Chairman requested USA FCE/EVA bring a presentation and corrective action plan to the 5/23/01 EHB on the winch/pip pin processing error.
This item was deferred.
Pending CR’s were distributed for concurrence.
This item was not formally presented; however, copies of the report were distributed to the panel.
This item was deferred.
- Gage Status — EC5/Kim Hostetler
- H-0959 – HST PFR Starboard APC Integration — XA/J. DuttonH-0924R1 — Update STS-108 (UF1) Tools ESEL — XA/Aaron Mears
The monthly Gage Status is presented the first Monday of the month.
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.Revision 1 to the STS-108 (UF1) Tools ESEL contains required additions, deletions and stowage changes due to airlock outfitting, stowage constraints, and hardware modifications.
Decision: Route for technical concurrence.
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.
- H-0960 — STS-102 Open Tool-to-Tool Fitchecks — HSMS/J. Case
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-0893R3 — Update STS-105 (7A.1) Tools ESEL — XA/Rich Fair
- H-0686R6 — Update STS-104 (7A) Tools ESEL — XA/Barbara Counts
- Walk-on: H-0997 — Equipment Hooks for Hydrazine Detector Tether — EC3/Brian Daniel
- Walk-on: H-0996 — Baseline JSC-40162, EVA Hardware Requirements/Certification Plan Short Form for the Gold Salt Hydrazine Detector Kit — HSMS/Chad Mooty
Revision 3 to the STS-105 (7A.1) Tools ESEL contains required changes to hardware requirements for the middeck and MPLM.
Decision: Route for technical concurrence.
Revision 6 to the STS-104 (7A) Tools ESEL contains updates to incorporate processing serial number swaps identified at Bench Review. It removes the Shuttle Hydrazine Draeger System from transfer list, switches 2 of 3 RET’s from the middeck to EMU stowage and 2 -381 RET’s from EMU stowage to the middeck. It deletes the Hydrazine Equipment Stowage Bag, adds 2nd BSA/REBA cable at MOD and engineering request, and adds EVA camera mounts for information only.
Decision: Route for technical concurrence.
This CCBD requests 4 Class I and 2 Class III equipment hook assemblies to be used to tether the contamination sampler during use.
Decision: Route for technical concurrence.
This CCBD requests updating JSC-40162 to include use of the Gold Salt Hydrazine Detector Kit on ISS.
Decision: Route for technical concurrence.
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. LeStourgeonGreg 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.
