EVA Tools and Crew Aids Panel Minutes of Meeting April 30, 2001
The EVA Tools and Crew Aids Panel met at JSC on April 30, 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 A total of eleven (11) FIAR’s are open for EVA hardware. Four Three FIAR’s were 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.
A plan of action is in place; can close by 5/7/01.
JSCEC0863F — Modular Gimbal Assy. End effector sticking/not closing.
Insufficient rationale for closure; back with EC5.
JSCEC0851 — General Purpose Cutter (GPC). GPC handle does not lock.
Design in work; pending receipt of new flight handles and resumption of tests. Will require submittal of CR.
No new FIAR’s were reported.
STS-104 (7A) FIAR’s were statused as follows:
JSCEC0839 — REBA Charger. REBA failed to show green LED during acceptance testing.
Interim to be written with same wording as interim for STS-100 (6A).
JSCER0035 — USA SAFER. SAFER battery erratic current readings.
Will be NFC for STS-104 (7A).
STS-105 (7A.1) FIAR’s were statused as follows:
BFCE026A024 — High Strength Bridge Clamp. Unlock push button will not extend.
Will be demanifested on next ESEL revision.
JSCEC0867 — High Strength Bridge clamp. Damaged EVA locking pin on High Strength Bridge Clamp Assy.
Will be demanifested on next ESEL revision.
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 547 603 days old.
FIAR’s open by flight:
STS-102 0
STS-104 (7A) 103
STS-105 (7A.1) 138
STS-108 (UF1) 10
STS-109 (HST) 11
- 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 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. There are 10 open hardware certification for STS-109.
- Mission Hardware Status — LM/F. BlissKevin Thomas
- 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.
STS-104
The middeck hardware is being processed for this flight. Some Bench Review items were shipped last week. Tomorrow, approximately 70% of the hardware will be at USA. The rest of the non-EHIP and REBA hardware should be at USA no later than 5/8/01. EHIP hardware is currently being processed and should be available by 5/8/01. Bench Review on dock is 5/1/01. Bench Review is currently scheduled for 5/15/01. All items will make Bench Review.
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. All items except the ones listed below will go out todayl. These items may not be ready for shipment until the week of 5/7/01. 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
No activity to report.
This item was deferred.
This item was deferred.
The weekly "stoplight" HITS Metric Report was presented. This report shows hardware and/or service/support delivered, on schedule, and not meeting planned delivery date or program need date. Showing "Red" for STS-104 (7A) are the General Purpose Cutter Replacement Unit, EHIP PGT Cable and EHIP Battery Pack Assembly, EHIP Charger Battery Pack Assembly, PGT/EHIP Y-Power Charger Cable, and EHIP Light Assembly.
The Chairman requested the EHIP delivery issue be presented to the EHB every week until delivery is complete.
This item was deferred.
- Gage Status — EC5/Kim Hostetler
- H-0959 – HST PFR Starboard APC Integration — XA/J. DuttonH-0983 — Baseline STS-112 (9A) Tools ESEL — XA/A. Mears
This status will be not presented until the monththe first Monday of May (5/7/01).
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 CCBD baselines the STS-112 (9A) Tools ESEL and manifests the standard core of SSP and ISS items to the middeck, manifests the standard complement to the PLB and manifests the standard tools in the lightweight box in the TSA.
Decision: Route for technical concurrence.
- H-0725R2 — Modify Camera Mount Assembly with Equipment Hook — Stop Work — XA/L. Crocker H-0686R5 — Update STS-104 (7A) Tools ESEL — XA/B. Counts
This Revision 5 to the STS-104 (7A) Tools ESEL contains required updates and incorporates multiple real-time flight processing serial number swaps due to DR’s and FIAR’s, adds a 4th trunnion pin cover to the starboard TSA at the program’s request, removes the HST ratchet from the transfer list, updates SAFER bags to SEG (French hook) configuration, updates new build EHIP batteries to the -303 configuration, incorporates HPGT cover part number and all MLI serial numbers, and incorporates top assembly/
subassembly formatting where known in the TSA.
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: 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.
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.
- EVA Winch & Mount, Fwd & Aft, 4-Ball Pip Pin Modification Status — USA/Doug Edwards
A status on the 4-Ball Pip Pins was presented. The 4-Ball Pip Pins have taken an unusually long time for purchase and certification, beginning with STS-102. A quantity of 15 was received by USA Bond on 4/10/01. JSC drawings were transferred to FEPC in 1986; eight drawings have been updated and made electronic for STS-105 (7A.1). Paperwork has been received to modify one EVA winch Mount Fwd and Aft for safety wire installation at KSC. The hardware is scheduled to be reconfigured by 5/2/01, PIA’d by 5/4/01, and shipped on 5/7/01. USA is negotiating with KSC to get relief on dates.
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 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.
