ML20069K620
| ML20069K620 | |
| Person / Time | |
|---|---|
| Site: | Perry  |
| Issue date: | 10/26/1982 |
| From: | Johari Moore LAWRENCE LIVERMORE NATIONAL LABORATORY |
| To: | |
| Shared Package | |
| ML20069K623 | List: |
| References | |
| TASK-1.D.1, TASK-TM NUDOCS 8211110457 | |
| Download: ML20069K620 (51) | |
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AUDIT REPORT HUMAN FACTORS ENGINEERING CONTROL ROOM Ill-PROGRESS AUDIT PERRY NUCLEAR POWER PLANT UNIT 1 CLEVELAND ELECTRIC ILLUMINATING COMPANY
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October 26, 1982 m
l James W. Moore Jack Savage
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i Nuclear Systems Safety Program Lawrence Livermore National Laboratory (kb l
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AUDIT REPORT HUMAN FACTORS ENGINEERI'NG CONTROL ROOM IN-PROGRESS AUDIT PERRY NUCLEAR POWER PLANT UNIT 1 CLEVELAND ELECTRIC ILLUMINATING COMPANY Introduction The Cleveland Electric Illuminatin Control Room Design Review (DCRDR)g Company (CEI) is performing a Detailed at Perry Nuclear Poder Plant Unit 1.
This audit report is based on the NRC's review of the 7 June 1982 interim DCRDR report prepared by the BWR Owners Group for Perry Unit 1 and on the NRC's 9-13
' August 1982 in-progress audit performed,on-site.
The in-progress audit was carried out by a team from the Human Factors Engineering Branch (HFEB),
Division of Human Factors Safety and its consultants from the Lawrence Livermore Jiational Laboratory.
The audit report is divided into four major parts.
Part A contains a list of those items that were not available for review during the in-progress audit.
Items listed in Part A must be evaluated by CEI.
Also, included among the unevaluated items were CEI findings 4.5. 2.1, 4.5. 2. 2, 4.5. 2.3, 4.5. 2.4,
- 4. 5. 2,. 5, an d 4. 5. 2. 6.
Those items concern procedures and will be referred to the Prfcedures and Test Review Branch Division of Human Factors Safety for evaluation.
Part B contains Human Engineering Discrepancies (HED's) identified by CEI in the interim DCRDR report or by the HFEB team during the in-progress audit.
Part C contains HED's identified by CEI which the HFEB team determined to be either invalid or corrected"at the time of' the in-progress audit.
Part D contains a log of the photographs taken by the HFE3 team during the in-progress audit.,
Numbering within Parts A-C of this report conforms to that in Section 6 of NUREG-0700.
The following notation also applies within Parts A-C.
o HED's which are marked with an asterisk (*) are verbatim transcripts of HED's reported in CEI's interim DCRDR report.
CEI used lower case letters to identify subelements of several of those HED's. The subelements were evaluated separately and thus may not be found together in this report.
For ease of tracking, a note concerning the location in this report of other subelements of such HED's is provided. Also, the lower case letter used by CEI to identify subelements is appended to findings numbers in this report. HED's without an asterisk were noted by the HFEB team during the in-progress audit, o
Numbers in the low ~er right hand corner of the text (e.g., 4.1.2.1 are the HED identification numbers from CEI's interim DCRDR REPORT).
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Photo numbers in Part D correspond to those listed.to the left of Finding (HED) numbers in Parts A and B of this report.
Photo numbers in the body of HED',s corresoond to those provided in CEI's 1 terim DCRDR report.
9 All HED's, including those identified in CEI's evaluation of items listed in
.Part'A, should be corrected prior to licensing.
In the event an HED cannot be corrected prior to licensing, the appliciant will be required to provide a rationale for deferral, and interim pre-licensing correction, and a reasonable schedule for implementing the long-term correction.
Corrections which are deferred beyond licensing will become license conditions, and deferral of a correction beyond restart following the first refueling outage will not be acceptable.
Per SECY-82-lli, CEI should arrange a schedule for completion for the Perry Unit i DCRDR with the NRC project manager.
Ideally, the applicant should plan to arrange that schedule to allow NRC close-out of Task Action Plan Items I..D.1 and II.K.3.27 prior to iicensing.
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AUD1T REPORT -
Part A HUMAN FACTORS ENGI'4EERING CONTROL ROOM IN-PROGRESS AUDIT PERRY NUCLEAR POWER PLANT UNIT 1 CLEVELAND ELECTRIC ILLUMINATING COMPANY Part A - This section contains a list of those items which were not avialable for review during the August 9 through August 13, 1982 in-progress audit.
1.0 Contr'ol Room Worksoace A.
Control room furnishings and ' equipment were not installed.
Adequacy of furnishings, obstacles to operator movement, and presence of
, unnecessary furnishings and. equipment could not be evaluated.I' 3.
The control roem environment during operations could not be evaluated.
C.
Operator protective equipment and emergency equipment storage facilities could not be evaluated.
Tf' Document organization and storage provisions in the control room and at the remote shutdown panel could not be evaluated.
E.
The effect of personal protective equipment on the operator's performance of recuired tasks could not* be evaluated.
F.
The remote shutdown panel environment during operations could'not ce ev aluated.
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Perry Unit 1 Audit Report Part A 2.0 - Communications v.
A.
Communication procedures and instructions were not in place to allow evaluation ef:
1.
Public address system management use and procedures 2.
Emergency response communications procedures 3.
Normal cperations communications procedures 4
Communication systems management, use and procedures
,5.
Control room priority interrupts for access to communications systems S.
The entire control room communication system was unavailable for evaluation 5.0 - Disolays A.
System status panels were inoperative and could not be fully j
evaluated I
7.0 *TEocess Ccmouters A.
The operational process computer and CRT display system could not be evaluated because new software and hardware is to be installed in August 1983
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B.
The sequence of events recorder was not operational and could not be evaluated 8.0 - Panel Layout t
A.
Panels 902, 906, and 907 could not be evaluated as most of the equipment for these panels had not been ' installed
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Perry Unit 1 Audit Report Part A The follcwing list of items are specific HE3sefrom the CEI's interim DCROR report as provided by CEI which could not be evaluated.
FINDING 1.l*
Operator pathways between panel 680 and other benchboards may be cbstructed by the centrally located panel 805 (Photo #24).
(4.1.1.4) 1.2*
Emergency lighting levels are below the recommended 20 footcandles minimum at panel. surf aces (4.6.3) 1.3*
Some indicators and recorders were found for which alternate process units may provide useful information to the operator:
(4.2.2.4) 1.3d*
The hotwell level controll'er on panel 870-2 is scaled as 0-100, corresponding to dump / makeup (Photo #54).
(4.2.2.4.d)
HFEB NOTE: Finding 35.13 and C5.1 contain the other parts of this CEI finding.
1.4*
A color code is in effect at Perry, specifying color applications for mimic lines and indicating lights.
However, not all systems have assigned colors.
(4.1.4.1) 1.5*
The computer output is very difficult to modify and it is not anticipated that output will be periodically reviewed and updated.
('4.4.7),
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A-3
AUDIT' REPORT Part 5 HUMAN FACTCRS EN31WEERING
' CONTROL ROOM IN-PROGAESS AUDIT PERRY NUCLEAR POWER PLANT UNIT 1 CLEVELAND ELECTRIC ILLUMINATING COMPANY Part B - This section contains a list of valid HED's identified by CEI in tneir 7' June 1982 interim DCRDR report or by the HFEB team during the 9 August through 13, August 1982 in-progress audit.
B-1 CONTROL ROOM WORKSPACE PHOTO FINDING l.1 The operator at the remote shutdown panel manually controls Divisien 1 equipment after transfer to the remote shutdown panel is completed.
Division II and Division III remain in automatic mode in the control room and may automatically initiate ECCS, but the recote shutdown panel operator has no direct source of information as to this event.
Neither does he nave a direct indication of scram.
1.2 Off-normal instructions for the remote shutdown panel are still being developed.
Confirmation is needed that all instrumentation and controls needed to satisfy those instructions are supplied.
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1.3 The remote shutdown panel uses Division I power.
- However, there is no provisic'n' to start Division I on-site power at the remote shutdown panel.
Il 1.4*
No discharge pressure indication is available for LPCS or RHR pumps.
(5.5)
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,s Perry Unit 1 Audit Report Part B T
B-1 CONTROL ROOM WORKSPACE. (cont. )
PHOTO FINDING 1.5*
Some limits discussed in the guidelines are "two dimensional",
i.e., the coerator must correlate two different parameters and plot the resulting operating point on a graph defining the permissible operating regions.
In one case he must relate three different parameters, utilizing two separate graphs.
In a time critical situation this severely compounds the operator's workload and requires careful design of both control room layout and procedures.
The parameters involved should at least be situated in close proximity to each other with the associated graph provided nearby.
However, a more innovative approach may prove more satisfactory, perhaps involving two dimensional CRT plots or X-Y recorders.
This area of the guidelines must be given extremely close attention as actual plant specific procedures are prepared.
Limits involving correlation of multiple parameters include suppression pool heat capacity, RPV saturation, suppression pool spray, pressure suppression, suppression pool load, and heater capacity level limits.
Potentially of most concern in this respect are limits involving suppression pool temperature and level, as these parameters are located on a backpanel.
Specific recommendations for display formating are contingent upon the final form of the plant specific procedures and the philosophy utilized in development of emergen.cy response system addressed by NUREG 0696.
(5.29) 13 1.6*
No wide range react _or pressure recorder is available on panel 650.(unnumbered - p5'.3 interium DCRDR report)
HFEB NOTE: The panel was indentified as panel 680 during the in-progress audit.
1.7*
No indication of reactor temperature is available in the main control area,(unnumbered - p5.3 interium DCRDR report) 1.8*
The suppression pool level recorder has not been rounted in the main control area.
(5.10) 1.9*
No indication of containment water level is available.
(5.25) 1.10*
The off gas and rIdiation monitoring panels cannot be seen from the normal operating area (Photo #23)
(4.1.1.6)
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Perry Unit 1 Audit RGport Part B
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I B-1 CONTROL ROOM WORKSPACE, (cont.)
PHOTO FINDING 1.11 There are no furnishings (e.g., chairs) at the remote shutdown panel.
1.12*
View of panels 870 and 877 are partially blocked from some positions in the control room by a centrally located support column (Photos #21 & 22).
(4.1.1.5) 1.13*
Storage space has not yat been alotted fer procedures and.
reference materials.
When space is cesignated, care should be taken that bookshelves do not obstruct walking paths in the control room.
(4.5.1.1) l 1.14 There is no provision for storage of documents (e.g.,
off-normal instructions and drawings) at the remote shutdown p anel.
1.15 There are presently no provisions for storage of spare parts (e.g., light bulbs and expendables) within the control room.
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1.16 At this time there is not a dedicated communications link between the primary operati.19 area and the shift supervisor's office.
I6 1.17*
The corners of panel inserts and the edges of the guardrail ok panel 680 are somewhat sharp (Photos #9-12)
(4.1.1.3)
I24 1.18*
The following controllers were not easily reached from a normal operating position:
(4.2.1.1) 1.18a* RCIC controllers on panel 001 are rounted high.
(4.2.1.1.a)
HFEB NOTE: Finding Cl.4 contains the other part of this CEI finding.
125 1.19*
Controllers are clearly marked to show manual and automatic
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control options.
However, on panel 001, the MANUAL / AUTO designations are obscured by the controller lever due to the high placement of the controller.
(4.2.1.3)
B-3 mm
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Perry Unit 1 Audit Report Part B T
3-1 CONTROL ROOM WORKSPAC8. (cont.)
PHOTO FINDING 1.20*
Switches on the following panels have been placed above or below recommended heights and are not easily reachable from a normal operating position:
001 632 865 601 669-672 970 604/803/804 800 (4.2.5.6) l.21*
Many backpanels have controls and indicaters mounted both above and below recommended heights.
(4.1.3.6) 1.22*
The emergency shutdown, panel contains controls and displays placed above and below recommended limits.
(4.1.3.10)
P2,P3 1.23*
While the computer keyboard is appropriately P4,I7 located for a seated operator at panel 680, the CRT above the keyboard is placed too high and the other two CRTs offer unf avorable viewing angles.
The operators indicate that the computer will probably be operated from a standing position.
(4.4.1) 1.24*
Laydown space for use of procedures at the panels has not been-provided (see Figure 6-1).
This is especially important for panel 680 (see Figure 6-2).
During startup, the operator must refer to the startup procedure and the rod sequence list Operators reported that while practicing start-ups at the simulator, they found it necessary to hold the rod sequence list on their knees.
(4.5.1.2)
IS 1.25*
Glare or parallax w're observed on the following panels, usually on the upper most displays:
001 623 803 601 632 804
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604 642 870 619 -
680 904 622 800 970 (4.2.2.2) 19 1.26*
Glare or parallax were observed on recorder faces located on panels 600, 680, 907, 642, 800.
(4.2.3.9) 125 1.27*
Glare was observed on the remote shutdown panel, particularly on the upper most-indicator f aces (Photos #25, #26).
(4.6.1) s-4 N
Perry Unit 1 Audit Report Part B Y
B-1 CONTR01. ROOM WORKSPACE, (cont.)
PHOTO FIrlDIt1G 1.28 There does not appear' to be any way that operators in the kitchen can be contacted by personnel in the control room.
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Perry Unit 1 Audit Roocet Part B
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Part 3 B-3 ANNUNCIATORS
/HOTO FINDING 110 3.l*
The following annunciators may be actuated from multiple inputs (high/?ow,etc.):
601-16-A2, E5 601-19.G4, H4 601-17-G3, G4 601-20-05, G4 601-21-66 680-1-A1, A2, A3, A6 680-2-B1, B2, B3 680-3-A9 680-4-A1, D8, ES, A10 680-5-85 845-A4, B2, 84, 37, 88, Cl, C2, C7, 01, E5, E8 870-3-E3 870-7-F2, G2 870-9-C2, C3, F1, F2 877-A2 (4.3.10)
'" 3. 2 The LPCS Pump Discharge Press HI/LO annunicator on panel 601-21A may be actuated from multiple inputs.
3.3*
Entry conditions into the guidelines may involve action level not currently addressed by precedures or alarmed in the annunciator system. As plant-specific limits are define.d, the available annunciators should be evaluated to determine if entry conditions are~ adequately alarmed.
(5.31) 3.4*
A first-out feature has not been provided.
.(4.3.17) 3.5*
While some attempt has been made at prioritizing annunciators with color coded windows, application of this technique does not appear to be well defined or consistent on all control panels.
(4.3.11) 112 3.6*
Annunciator dudible alarms are not directionalized or prioritized.
(4.3.13) 1
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B-6 enum
Perry Unit 1 Audit Report Part S B-3 ANNUNCIATORS, cont.
PHOTO FINDING 113 3.7*
The following annunciators are not located above related controls and displays:
870-1-H1 870-5-01 680-7-C9, C10, Cll, C12, 09, 011, 012, Ell, E12 680-15-B1 (4.3.3)
M1 3.8, Annunciator panels in the control room are not identified with lab el s.
3.9*
While most annunciators are grouped together by system within panel inserts, a few alarms were identified which could be better arranged:
- 601-17-E4 and 05 are separated
- 601-20-P3 and E4 are separated
- All scram signals are not grouped together on panel 680
- RHR pump room cooling for alarms are not grouped together on panel 800-R400
- Containment vacuum relief alarms for A and B trains are separated on panel 800-R405
- Combined gas mix system compressor alarms are separated on panel 800-R405
- Windows 904-R655-A3 and B3 are inverted (reversed)I relative to the surrounding wi'ndows l
- 904-R655-B3 and E3 are separated
- Other alarms are interspersed with low ficw alarms on the left side of panel 904-R655
- Arrangements for RHR A and B alarms l
are not identical on panels 601-17 l
and 601-20 (4.3.1)
Il5 3.10*
Within system groupings, some inconsistency in arrangements of annunciator windows was apparent.
Some related windows, such as 601-16-A3 and B3 are arranged vertically.
Others, such as 377-A3 and A4 are arranged horizontally. Other examples of this variation in placement may be found.on panels 845, 370, 904 and 680.
(4.3.2)
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o Perry Unit 1 Audit Report Part B B-3 ANNUNCIATORS, cont.
PHOTO FINDING 3.11*
Annunciator windows have not been grouped by type; i.e.,
informational and diagnostic alarms are not segregated from trips and warnings.
(4.3.4) 116 3.12*
There is currently no procedure or window markings to assure that annunciator legend plates are replaced in their corret locations when removed for maintenance.
(4.3.19) 3.13*
No administrative procedure is in effect specifying (a method of identifying out-of-service annunciators.
4.3.20)
M3 3.14 Several annunciator panels contain blank tiles which are illuminated.
Il7 3.i5*
Wordingforthefollc[inglegendscouldmoreclearlydefinethe purpose of the alarm.
- 601-17-H6 (indicates a particular valve lineup)
- 601-29-H2 (indicates a particular valve lineup)
- 601-18-A1, A2, B2, B2 (" identified" means equipment drain, "unicentified" means floor drain)
- 601-21-C6 (unclear whether this is associates with RCIC or LPCS)
- 680-4' A5, A14 ("needs maintenanc'e" is unclear)
- Electrical designations on annunciators on panel 870 are somewhat abstruse (4.3.8)
IIS 3.16*
The following alarms annunciate abnormal conditions for parameters which may have more than one trip, alarm or action level.
For example, "DRYWELL PRESS A HIGH" could be an alarm, a scram, an isolation or a safety system initiation signal.
In such cases, the annunciator legend should clearly specify the intent of the alarm.
680-5-B5 870-3-H1 601-20-G2, H2, E6 601-17-G1, H1, E2, ES (4.3.9)
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Perry Unit 1 Audit Report Part B B-3 AtitiUf1CIATORS, cont.
PHOTO FINDING 119 3.17*
More succinct wording would enhance the readability of the following annunciator legends:
601-21-H1 601-20-A3, B3, C3, DS, E5 601-17-A3, B3, C3, 03 601-17-B1 (delete "B")
601-20-82 (delete "A")
601-19-A2, B2 680-1-C3, 03, B4 680-4-C1, 01, El, 01, 02, A6, C10, D10, E10 800-R405-E5, F5 870-7-02 (4.3.7) 3.18*
The folic.ving incensistent abbreviations were found on annunciator windows:
ST Lil (620-1-C3) vs MSL (680-3-AS)
CNDR (680-1-A6) vs COND (680-3-A6, A7)
AL'S (680-4-E12)
D/W (680-4-06, 015) vs DW on other par:els RX vs RPV (680-5-C5)
CIRW PUMP (870-3-El)
TB (870-3-H2) vs TURBINE BLOG (870-3-H1)
Periods are used in abbreviations on windows:
870-4-A1, A2 CND STRG TK (870-7-A2) vs CST (601-16-F5)
(4.3.5) 121 3.19*
Annunciator panels are not marked with an alpha-numeric location code.
( 4. 3.12 )
I20 3.20*
Annunciator legends on panel 680 are not easily readable from a normal operating distance due to the small lettering. size (Photos #5, #31).
(4.3.5)
M4 3.21 There are three different type fonts used on annunciator tiles on panel 680.
M2 3.22 The annunciator panel on 870-1A contains tiles which have temporary handwritten legends.
122 3.23*
Separate acknowledge and reset buttons have not been provided.
(4.3.15) 122 3.24*
Silence buttons are only available on panel 680.
(4.3.14)
B-9
Perry Unit 1 Audit Report Part B B-3NNUNCIATORS, cent.
PHOTO FINDING 122 3.25*
One set of annunciator response buttons en panel 680 is of a different style and configuration from all others (Photos #59,
!60).
(4.3.16) 3.26*
The "cause" section of annunciator response procedures is somewhat long, including sensor identity, setooint, reset point and possible contributing f actors.
This section should be much more concise. Toward this end, listing sensor identity and setpoint separately may help and also make this information easier to locate.
(4.3.18)
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t Perry Unit 1 Audit Report Part B I
Part B B " CONTROLS l
PHOTO FINDING 4.1 The DG-3 voltage regulator c:ntrol switch for panel 879 is not installed.
P33 4.2 The Reactor Mode Switch for panel 680 has not been installed.
4.3 J-handle transfer switches on the remote shutdown canel are subject to inadvertent actuation.
-C 7 4.4 The turbine trip pushbutton on panel 620 is near the edge of the benchboard,and is not protected from possible inadvertent actuation.
P28 4.5' On panel 680 Inboard Ma'nual Scram Suttons
$3C and 533 are separated from Outbcard Manual Scram Bu'
..is S3A and S30.
Buttons 53C and 538 are located in clot. proximity to the Manual Isolation Div. 1 and Div. 4 p0shbuttons which are of the same type of guarded pushbuttons.
Since one scram button on each side of the isolation pushbuttons must be depressed to initiate a scram, there is a possibility that the Manual Isolation pushbutton may be depressed inadvertently when a manual scram is desired.
4.6*
The direction of thumbwheel motion in automatic controllers is opposite' to the resulting motion of'the moving scale.
( 4. 2.,2. 3 )
P15 4.7*
The directicn of switch. motions on the following panel 601 Pl6 controls is not in accordance with accepted conventions:
Pl7 MAIN STEAM LINE IttBD and OUTSD MSIVs close to the right and open to the left.
(4.2.5.1) l 4.8*
Switch handles have not been shape-coded to distinguish switch functions.
(4.2.5.8)
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Perry Unit 1 Audit Report Part S T
B-4 CONTROLS, cent.
PHOTO FINDING P18 4.9*
While red pushbuttons are usually provided for manual trip functions, similar distinctive marking is not used to highlight manual initiation pushbuttons for automatic systems.
(4.2.5.9)
C5 4.10 The three annunciator acknowledge controls on panel 680 C6 are very near to an identical-feeling set of RFPT trip controls that are unguarded.
These identical controls could be confused resulting in an inadvertent RFPT trip.
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Perry Unit 1 Audit Report Part B Y
Part B B-5 DISPLAYS PHOTO FINDING C12 5.1 The RCIC Pump Suction Pressure Meter on panel 601-21B is incorrectly labeled showing vacuum adjacent to the positive pressure side of zero.
5.2 The watts and VARS meters for DG3 have circular scales. While DG1 and OG2 use vertical. scales for these same parameters.
5. '3 A diesel RPM meter for DG3 as not been provided as there is for DGl and OG2.
5.4*
If reactor watir level has dropped belce the top of the fuel, the operator is left with only one water level indicator on I
scale, which may not b5 calibrated for the existing conditions.
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(5.1)-
5.5*
Suppression pool water level is referenced to normal, but technical specification limits are referenced to the bottom of the suppression pool.
(5.4)
:5.6 The RX water level recorder at the remote shutdown panel provides only limited range and is not appropriately referenced as required by II.K.3.27.
Range of water level indication does not cover top end of vessel; i.e., water solid operation.
Operator decisions regarding RCIC ' operations may be required when water level is outside the limited range of the available display.
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l 5.7 A task analysis to determine operator information requirements at the remote shutdown panel has not been conducted.
Il 5.8 The LPCS and HPCS systems do not have pump suction pressure gauges.
Since neither LPCS nor HPCS has a pump suction valve interlock to prevent pump start with the suction valve closed, the operator needs pump suction pressure information.
5.9 On the remote
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Perry Unit 1 Audit Report Part B 3-5 D* SPLAYS, cont.
PHOTO FINDING P24 5.10 There are PSIA meters without la'lel's or scales on panel 680-70 Steam Bypass Panel.
j P22 5.11 The blank meters installed on panel 680-13 may be unnecessary instrumentation.
5.12*
No direct indication of safety-relief valve position is provided.
(5.3) 5.13*
Some indicators and recorders were found for which alternate process units may provide useful information to the operator:
(4.2.2.4)
P6 5.13b* HEATER 1 PRESSURE and MAIN CONDENSER SHELL PRESSURES on panel 870 are scaled in psi vac, whereas in Hg-vac would be more common.
(a.2.2.4.b)
P3 5.13e* The condensate storage tank level indicator on panel 870-2 is.
scaled 0-100%, but procedure references specify level in gallons (Photo #55).
(4.2.2.4.e) ec HFEB NOTE: Finding A1.3 and C5.1 contain the other parts of this CEI finding.
I26 5.14*
Some indicating devices are not scaled in subdivisions
[
consistent with the accuracy required by the operator.
Suppression pool lev'el instruments provice indication to only
+ 2 ft; a wider range may be required.
On the remote shutdown lianel, wider ranges may also be desirable for reactor level and drywell pressure indications.
(4.2.2.12)
P9 5.15*
A reactor pressure indicator on panel 6SO has no scale (Photo
- 6).
(4.2.2.13) 5.16*
Orywell and containment pressure instruments are calibrated in psia, whereas trips and alarm points are specified in psig.
(5.2) 14 5.17 On the Suppression Pool Level meter on panel 601 the zero is not centered and the range is too narrow.
P34 5.18 RFP and MFP flow indicators on panel 680 '3 use different scale multipliers (x 100~and x 1000).
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Perry Unit 1 Audit Report Part B B-5 OISPLAYS, cent.
PHOTO FINDING 5.19 Operation at low RHR flows may be required, but RHR flow indication at the remote shutdown panel is not valid at less than approximately 30% of the meter scale.
5.20 At the remote shutdown panel the range of the reactor pressure meter is 0 to 1500 psig, but indicator reading is invalid at approximately 20% meter range and below. Operator decisions to stop, start and transfer equipment (RHR, RCIC) are based on readings in the invalid range.
5.21*
The guidelines require'the use of bulk suppression pool water ts perature and average drywell atmosphere temperature.
No provision has yet been made to obtain these " average", temperatures.
(5.27)
P30 5.22 The logarithmic CPM scales of the Rad Monitoring Recorders on panel 907 have major markings at numbered 10x values. There are nine intermediate scale markings between 10x values and single minor marking between intermediate markings.
Values between numbered 10x values are difficult to read because of the large number of undifferentiated intermediate scale markings.
D10 5.23*
Small indicators such as those used on Pil panel 680 are not easily read.
The control band on the SRM period meters subtends a very small visual arc when viewed from a normal operating position (Photos #5, #6, #29).
(4.2.2.5) 5.24*
Process units are not specified on labels for the folloving indicators and recorders:
IRM/APRM recorders, panel 680 LOOP A/B Flow, panel 680 TOTAL RECIRC FLOW, panel 680 PRESSURE, panel 680 REACTOR LEVEL, panel 680 Bailey recorders on panel 001 Indicators on panel 619 Hydrogen analyzer and glycol pump temperature displays, panel.845 Indicators on panel 811 The label for the drywell pressure recorder on the emergency shutdown panel does not specify whether the pressure is displayed in psig or psia.
(4.2.2.3) l B-15 m
e Perry Unit 1 Audit Report Part 3 3-5 DISPLAYS, cont.
PHOTO FINDING 5.25*
Scales on panel 823/842 are not identified clearly. Units are small and often obscured from view.
Sometimes the scales are not marked at all.
(4.2.2.6) 5.26*
On panel 001, references used for water level indications are at variance from those used in the control room.
Also, the SUPPRESSION POOL LEVEL display is not clear since the zero point is not specified.
(4.2.2.10) 5.27*
Different zero references are used for reactor water level ins trumen ts.
This may cceplicate comparing readings from multiple indications.
(5.19) 5.28*
The following indicators possess greater than 9 intermediate graduations between numbered scale divisions (Photos #27, #28).
Panel 601:
C11R1CO B/A CR0 PUMPS A/S E51-R501 RCIC PUMP OISCH PRESS E51-R602 MST TO RCIC TURBINE PRESS E22-R601 HPCS PUMP DISCHARGE PRESS Panel 001:
SUPPR POOL LEVEL Panel 622/623:
All meters Panel 632:
EQUIPMENT AREA AMBIENT TEMP Panel 642:
SUMP LEVEL Panel 669-672:
EQUIPMENT AREA AMBIENT TEMP Panel 823/842:
APRM indicators Panel 845:
Several discrepanE indicators Panel 970:
FPCC SURGE TANK LEVEL A NCC PUMP A and B Panel 811:
Several discrepant indicators Panel 821:
Sev'eral discrepant indicators (4.2.2.14) 5.29*
Numbered scale divisions that were not in decimal multiples of i
1, 2 or 5 were observed on the following panels (Photos d27 and 28).
001 680 870 601 800 904 l
622 821 970 669/672 -
823-842 (4.2.2.15)
C11 5.30 These pressure meters on panel 870-4B are in different units which are hard to reference to each other.
l N36-R401A, B Heater 3 Pressure Meters N36-R201A, B, C Heater 2 Pressure Meters N36-R341A, B C Heater 1 Pressure Meters d
B-16 em
Perry Unit 1 Audit Report Part B 3-5 DISPLAYS, cont.
PHOTO FINDING C4 5.31 Black and red colors are used to code pushbuttons in an inconsistent manner in the Control Room.
5.32 Yellow and green colors on the CRT displays cannot be discriminated from each other by a red-greer, color blind person.
5.33*
Ind.icator scales are generally not marked or color coded to indicate normal, marginal and abnormal ranges.
(4.2.2.1) 5. '34
- There currently exists no positive means for testing (4.2.4.2) or detecting f ailed indicatjng lights.
5.35 There is no lahp test capability provided for normally unlit indicators in the control room, at the remote shutdown panel, containment isolation status indicator panel and all other system status indication panels.
5.36 On panel 877, the DG-2 out-of-service status indicator panel dcas not have its tile labels etched.
- .37 Bulb replacement for backlit indicators on system status panels 5
is not convenient.
5.38 All system status panels, except isolation status panels, indicate normal condition by means This exaggerates the no-lamp-13st proble,of unlit tiles.
m.
~
5.39*
Relief valve position indications on panels 001 and 601 display only the condition of the actuating solenoid, rather than the actual valve position.
(4.2.4.3) 5.40*
Green lights on panels 680, 800 and 881/882 were relatively dim.
Howeve'r, normal operational room illumination conditions have not been established.
(4.2.4.1)
P20 5.41 Backlit indicator tile locations in indicator matrices are not identified on each tile.
Tiles can be removed, interchanged and reinstalled in incorrect locations (i.e, turbine control panel).
P25 5.42 On panel 680-8C, backlit pushbuttons and backlit indicators on the turbine control panel cannot be readily distinguished from one another.
e 3-17 um m
s
Perry Unit 1 Audit Report Part B B-5 OISPLAYS, cent.
PHOTO fit 4DIt4G 5.43 Strip chart recorders do not have paper installed on panels 601, 680, 870.
5.44*
Printed values on recorder charts may be difficult to read on the follwing panels:
(4.2.3.1) 5.44 a*
Panel 601 has minitrend recorders with very small numerals.
(4.2.3.1.a) 5.44b* On Panel 865, a " frosted" cover causes " haziness" in reading the numbers (Photo A30).,
(4.2.3.).b) 5.45*
Some chart recorders are provided with dual speed capability while others are not. The operator is given no indication from the front of the panel 'to distinguish between single and dual speed capabilities.
More widespread application of dual speed capability may be desirable, particularly for those parameters closely monitored during transient conditions and the instruments on the emergency shutdown panel.
(4.2.3.4) 5.46*
Point select capability is not provided for most multipoint
"~
recorders.
(4.2.3.5) 5.47*
Recorders are not generally marked to indicate proper size and type of chart paper.
(4.2.3.6)
P13 5.48*
tiuclear instrumantation bypass switches could be disturbed P14 when paper is replaced in IRM/APRM recorders (Photo #56).
N (4.2.3.7) 5.49*
Recorder scales are generally not marked to indicate normal and abnormal range.
(4.2.3.10)
P12 5.50*
The wide range level recorder on panel 680 has been supplied with an incorrect scale.
(5.22) 5.51*
A given parameter covered by the guidelines may possess several action levels *. Suppression pool water level, for example, has at least eight limits of concern to the operator. Limits or action levels of imediate concern to the operator should be marked in f ashion on the indicator or recorder.
They may include such. points es the top of active fuel for reactor water level, normal operating limits and vacuum breaker elevation for suppression pool level, and low pressure injection system shutoff head f~or reactor pressure.
(5.30)1 1 riote that items 5.30 and 5.6 are identical disc.epancies as taken from the CEI interim DCROR report.
B-18 m
~
Perry Unit 1 Audit Report Part B 3-5 DISPLAYS, cont.
~
PHOTO FINDING 5.52*
A given parameter covered by the guidelines may possess several action levels. Suppression pool water level, for example, has at least eight limits of concern to the operator.
Limits or action levels of immediate concern to the operator should be marked in some fashion on the indicator or recorder.
This may include such points as the. top of active fuel for reactor water level, normal operating limits and vacuum breaker elevation for suppression pool level, and low pressure injection system shutoff head for reactor pressure.
(5.6)1 5.53 Some trend recordersr do not have correctly scaled paper.
Examples.
panel 845 N64-R614 Adsorber Vault Temp panel 845 N64-R617 Adsorber Outlet Flow panel 842 Nil-R050 Mainsteam A&C Pressure panel 600 017-R601 Process Rad Monitor P26 5.54 Bailey strip chart recorders must be pulled out of the panel to view the time history record on the chart (i.e., on panels 601, 608,870).
5.55*
Alarm points are generally not identified on recorder scales.
(4.2.3.2)
M6 5.56*
The lef t hand wing of panel 620 has a very high density of 537 instrumntation (Photos #5, #6).
In the midst of these inserts S38 are seme of the operator's most important indications - water S40 level and reactor pressure.
These use either very small C3 indicators which are difficult to read from normal operating distances. or are on recorders, which are more appropriately used for trend indication.
Larger, more clearly labeled indications would be much easier to locate and use when evaluating plant conditions during major transients.
Cl 5.57*
Pointers partially obscure scale markings or numerals on round C2 indicators located on panel 680 and four indicators on panel 632.
(4.2.2.7) 5.58 On panels 691, 694, 672, and 669 pointers partially obscure scale markings or numerals on round indicators.
1 Note that items 5.30 and 5.6_ are identical discrepancies as taken from the
~
CEI interim DCRDR report.
~
B-19 emme
~..
Perry Unit 1 Audit Report Part B Part B v
B-6 LABELS & AIDS
-PHOTO FINDING S2 6.l*
Unlabeled white indicating lights are used on panels 669 53 and 672 for both LPRM downscale and LPRM bypassed 54 indications.
Similarly, red hydrogen purge lights and amber high/ low vacuum lights on panel 845 are not individually labeled (Photos #44, #a5).
(4.1.4.3) 55 6.2*
The following components are missing function labels:
Four indicators co panel 680-3 (Photo #6)
Indicating lights on panels 622 and 623 (photo #46)
Two reters on panel 870-1 Ten switches on. panels 881 and 832 Four indicating lights on panel 632 One pushbutten en panel 654 Numerous components on panel 845 (Photo #47)
One switch on panel 870-5 (Photo !?8)
Indicators on the right wing of panel 680 (Photos #49.
- 50)
(4.1.5.1)
S6 "6'.3*
System labels, seen on panels 601 and 870, are not used on most other panels.
(4.1.5.2)
HFEB NOTE: The HFEB team believes" panel 877, rather than panel 601, contains the referenced labels
~.
6.4*
Panels are generally not identified by both number and function.
(4.1.5.3) 6.5*
On panel 601, RX LEVEL recorders canno'. easily be correlated with the REACTOR FUEL ZONE LEVEL indicator since the latter is not labeled or provided units.
(4.2.2.9) 6.6*
The association of pen color to input parameter is generally not specified on recorder labels, except for those on panel 680.
(4.2.3.8)
B-20 e4Mk
Pcrry Unit 1 Audit Report Part B B-6 LASELS & AIDS, cont.
PHOTO FINDING 6.7*
Several switches on panel 001 have escutcheons incorrectiv i
listing position options as "0FF-1-2" (Photo #57).
(4.2.3.2) 6.8*
Status lights for containment isolation values are labeled by number only.
(5.15) 6.9*
The wide range / narrow range level recorder on panel 680 is missina its label.
Another level instrument on panel 680 is unlabded; its purpose is unclear.
(5.21)
Cl4 6.10 Identifying labels on casel 805 are missing frem three controls (i.e., two red,pushbuttons, cae rotary switch).
Cl4 6.11 The label " Radiation Emergency" on panel 805 is not descriptive of the function of the control it is associated with.
C15 6.12 A pushbutton next to the Instrument Volume Isolation Test Pushbutton, C71A52B, on panel 680-6C is not labeled.
6.13 There are four unlabeled selector control switches on panel 883, the Post Accident Monitoring Panel.
6.14 There are missing labels on the outboard and inboard isolation valve controls on panel 881 and panel 882.
M5 6.15 One of the annunciator controls on" panel 604 is not labeled.
P31 6.16 Turbine Trip and Turbine Trip Reset pushbuttons are not labeled on panel 680-8C.
6.17 Functionally grouped controls or displays are not identified by hierarchical labels.
59 6.18*
Many instances of repetitive labeling were found S42 (Photo #15).
Institution of an hierarchical system S46 should be considered to shorten device descriptions and accentuate functional groupings of panel components.
(4.1.5.7) 510 6.19*
Labels above controls on the "C" inserts of panel 680 are S11 obscured by the projecting switches and cannot be read from a seated operating position (Photos #2, #3).
Labels below components on the icwer surf aces of some vertical panels are difficult to see from a normal operating position. These 600','632, 655, 800, 823, 842, 845, 883, 902l8) include panels 906, 904, 907 and 970 (Photos #17-20).
(4.1.5 B-21 88 m
Perry Unit 1 Audit Report Part E B-6 LABELS & AIDS, cont.
PHOTO FINDING 6.20*
Labels are mounted below most indicators, but have been placed above controllers.
(4.1.5.10)
P23 6.21 In the Control Room, some labels are located below panel elements and many are obscured by the instrument or control when standing close, Exenple: RECIRC flow controllers on panel 680.
6.22 Sone position indicating labels are obscured by the operators 4
hand when its associated. control is operated.
6.23 At the remote shutdown panel the labels below the amber light do not indicate "RCIC Irip".
6.24 Control switch labels are inconsistent between P-601 and P-631 e.g.,
V alve Label Panel FlTT05iG XDT7alve P i!i3T B21-F051G Main Steam Line P-601 C Safety Relief Valve B21-F051A Safety Relief P-631 Valve B21-F051A Main Steam Line P-601 A Safety Relief Valve I14 6.25 Two annunciators on' panel 601-17A have incorrect labels; e.g.,
"DW to Containment Diff Press B High" and " Containment to DW Diff. Press B High".
The exact terminology should be:
"CNTMT TO DW DIFF PRESS HIGH".
6.26*
The following labels do not clearly describe the function of the associated components.
(4.1.5.9) 6.26a* Valve controls on panel 865 are identified only by number.
( 4.1. 5. 9. a )
6.26b*
"RCIC" on panel 632 should read RCIRC.
(4.1.5.9.b) 523 6.26c*
"IP" is incorrectly used twice on panel 870-4 instead.
(4.1.5.9.c)
(NRC reviewer comg.ent:
instead of "LP" and "IP" twice each.)
l B-22 m.__
Perry Unit 1 Audit Report Part B B-6 LABELS & AIDS, cont.
PHOTO FINDING 6.26d* The center position marking of switch E31A-513A on panel 632 appears to be part of the function label (Photo #51).
(4.1.5.9.d)
HFEB NOTE: The switch was. identified as 31A-513A during the in-progress audit.
~
- 6. '26 e*
Valve controls on panel 865 are identified by number only.
(4.1.5.9.e) 6.26f* Containment isolation valve indicating lights on panel 601 are labeled by number only.
(4.1.5.9.f) 6.26h* The meaning of "PERS AL EL603 OTBD CRLRT SA ISOL VLV" on panel 881/882 is unclear.
A more concise label would be more readable.
(4.1.5.9.h) 533 6.261* On panel 601-19, the label for switch 821-F015 currently reads "t%IN STEAM LINE B SAFETY / RELIEF VALVE". The correct legend is o
"MST LOW POINTS ORN SHUT 0FF val.VE".
(4.1.5.9.i) 6.26j* Reactor water cleanup dump flow indicator G33-R60Z on panel 680-1 is incorrectly labeled " PUMP, FLOW".
(4.1.5.9.j)
~
HFEB tt0TE: The indi,cator was identified as G33-R602 during the in-progress audit.
6.26k* The condenser, vacuum trip reset button on panel 680-7 is labeled only "COND VACUUM TRIP".
(4.1.5.9.k)
S30 6.261*
" UPSTREAM" and "0NSTREAM" designatidns are reversed on drain valve indications 2N22-F190A, F230A, F1808 and F2108 on panel 870-5.
(4.1.5.9.1) 529 6.26m* Labels for valves N25-120A (B) and 125A (B) on panel 870-5 incorrectly imply that scavenging steam is sent to the condensor.
(4.1.5.9.m)
S31 6.26n* On panel 870-6, identification numbers are reversed on labels for main steam pressure indication upstream of reheater 13 and 2A control valves (' Nil-R146A and R1418).
(4.1.5.9.n)
I e
B-23
Perry Unit 1 Audit R@ port P a r* 3 B-6 LABELS & AIDS, cont.
PHOTO FINDING 6.26o* On panel 870-8, RFPT vacuum trip override switches are labeled as resets.
(4.1.5.9.o) 6.26q* Labels for RFPT lube oil test switches and associated indicating lights on panel 870-8 should specify that a pressure test is involved.
(4.1.5.9.q) 6.26r*
"ST SEAL EVAP DRN" on the label for indicator IN22-F270 on panel 870-7 should read 0FF GAS PREHTRS.
(4.1.5.9.r) 6.26s* The word "f an" should be, included on the label for exhaust fan A centrol switch en panel 870-7 (lN33-C001A).
(4.1.5.9.s) 6.26t* The label for the low pressure condenser vent valves control switch on panel 870-7 (lN62-F010) sneuld specify that all three valves ( A, B and C) are actuated.
(4.1.5.9.t) 6.26u*
"RFPT A (B) ST SEAL LEAK OFF CRIV VLV" on panel 870-8 (IN22-F260A, B) should read RF'T A (B) FIRST STAGE DRN VLV.
(4.1.5.9.u)
S32 '"6.26v*
The stator water cooling pump reserve cut off switch on panel 870-9 is labeled only " CUTOUT".
Its numerical designation incorrectly implies that it operates stator water cooling pump A.
(4.1.5.9.v)
S29 6.26w*
Escutcheons are provided for "MST TO 2ND STAGE RHTR B DRAIN VLV" control switch on panel 870-5 and for "S/V V POSIT" indication on panel 680-3, but no associated components are installed (Photos #6, #53).
(4.1.5.9.w)
HFEB NOTE: Finding C6.2 contains the other parts of this CEI finding.
6.27*
Label syntax.is not always censistent.
For example, most valve labels include a "VLV" designation, but this designation is missing on a panel 970 label reading "NCC T0/FROM FPCC HEAT EXCHANGERS".
(4.1.5.5) 6.28*
The terminology used on panel 001 relief valve control switch labels does not correspond to that used on panel 601.
(4.1.5.6.)
~
B-24 m
,_m.
__.-.. ~~ -. -
y g
Porry Unit 1 Audit Report Part B B-6 LABELS & AIDS, cont.
PHOTO FINDING 6.29*
The following inconsistent abbreviations were noted:
SUPPR/SUPR V/VLV SUP/SUPP CST /STRG TANK
'~ MOTOR FDW PUMP /MFP SUPR POOL /SUPPR POOL /SP SVCE AIR /SA
^
INST AIR /IA CIRC WATER /CIRW CNTM/CNTMT DG/ DIESEL GEN MANUAL BLOW /SRV PP/PMP VV/VLV LKD/LD COND/CNDS OT BD/0TB DR (door)/DR (Drain)
(4.1.5.4) g.30*
Wording of component labels is generally very wordy and repetitious.
(5.14) 6.31*
Switch positions were not always clearly marked.
Panel 669 has controls with missing nameplates.
Panel 800 lacks markings for:
AEGT A/6,CHAN FLTR DELUGE DW Keylock Switch
(
OG BLDG EXIT A/B CHAR FLTR DELUGE CNTMT AND DW EXH A'/B FLTR DELUGE AB EXH CHAN FLTR DELUGE (4.2.5.3)
S7 6.32 ' There is inconsistent use of " NORMAL", "AUT0" S8 and "STANDBYd labels for. the center positions of centrol e
switches.
The description does not,truly match the switch or
(,
circuit function (e.g., Left-Right momentary, and
?
Left-Off-Right momentary).
6.33*
Center positions for the following s
switches are labeled "AUT0" but should be labeled " NORMAL":
i
\\
1N27-F140, panel 680-3 INil-Fil5B, panel 870-6 b
IN33-F110, panel 870-7 1'
The center position of switch IN27-C005A cn panel 870-8 is
.Q' labeled " NORMAL"'but should be "AUT0".
(4.2.5.5)
S42 6.34 Labels have white letters on a black background.
B-25 DS M
Sp g
,I y Perry Un4t t AuditReport(-'
-Part 2
'.f B-6 LASELS & MDS, cont.
~!
v PHOTO FINDING 3
S14 6.35 These panels have closely spaced matrice of valve controls S15 as follows:
panel 365 5x6 panel 881 6x7 panel 882 6x6 Some labels on panel 865 have identical functions described.
All other labels on the 3 panels nave similar functions identified.
Specific valve controls are difficult to. find.
125 6.' 6 Location aids (i.e., d$marcation, hierarchical labeling, color 3
padding) are not provided at the remote shutdown panel to aid the operator in identifying systems.
S42 6.37 There is little use of. demarcation of any kind on panels in the control room.
M7 6.35*
Controls and displays on the. main benchboards are 512 generally divided into system groupings by the panel 513 inserts themselves.
However, there are occasions in S14 which controls for two systems are present within one insert.
515 In these cases, use of demarcation lines and system
"^
S42 sumary labels should be considered to delineate operating
' areas and accentuate system groupings.
These techniques might be applied in the following instances:
Divide main and auxiliary steam to reheater controls on panel 870-7 (Photo #34).
Separate RCIC and LPCS controls on panel 60! (Photo #35).
Distinguish relief valve controls from main steam'line valves on panel.601-19 (Photo #36).
Delineate standby liquid control system cperating areas within panels 601-18 and 601-19.
Similarly, use of demarcation lines may be beneficial on some backpanels to divide system groups and demarcate undifferentiated matrices of controls.
The following examples were identified:
~
Remote shutdown panel (Photo #25)
Panel 970 (Photo #37)
Panel'904 (Photo #38)
Panel 845 (Photo !41)
Panel 632 Panel 654 Panel 655 i
Panel S65 (Photo #40)
Panel 881 (Photo #39)
Panel 882 -
(4.1.2.2)
B-26
Perry Unit 1 Audit Report Part B 3-6 L ASELS & AIDS. cont.
~
PHOTO FINDING S16 6.39*
Within system groupings, additional use of demarcation S17 lines may be made to divide subgroups of related M8 components.
The following examples are provided:
Divide A and B recirculation loops on panel 680-4 (Photo
- 33)
Demarcate inserts on the right wing of panel 680 Subdivide the remote shutdown panel (Photo #25) and panel 845 (Photo #41) 514 Functionally demarcate components on panels 881, 515 882, 883 and 865 (Photos #39, #40)
Subdivide quantit,ative displays on "B" panel inserts (4.1.2.3) 541 6.40*
Locating important indications could be facilitated 542 by providing visual identification cues, particularly F6 in areas of high instrument density (See Photo #5). (5.18) 6.41 The HPCS shares panels 601-153 and 16C with DIV 3 DG controls and displays without separation by demarcation or other means.
P32 6.42 The significance of the red collar on the Turbine Trip Pushbutton and the green collar on the Turbine Trip Reset Pushbutton is not known and they are not identified in control room color code conventions.
6.43*
Graphic techniques used in mimic aVrangements generally provide visual distinction between main and auxiliary flowpaths.
Two -,
exceptions were noted on panel 970, where the fuel pool cooling filter demineralizer' and heat exchanger bypasses appear to be main flowpaths.
(4.1.2.5)
S20 6.44*
Mini: flowpaths generally appear orderly and easily S18 recognizable; However, the RHR system layout on S19 panel 601 (Photo #42), the ventilation. mimics on panel 904, ano the containnvant mimic on panel 800 Appear somewhat convoluted.
(4.1.2.8)
S21 6.45*
The mimic on panel 601-19 incorrectly indicates the safety-relief valves in series (Photo #36).
(4.1.2.9)
S20 6.46*
Verifying correct operation of emergency system status S22 could be facilitated if major flowpaths were made more distinctive.
(5.17)
~.
B-27 W
m
Perry Unit 1 Audit Report Part B I
3-6 LABELS & AIDS, cont.
PHOTO FINDING 6.47*
Blue mimics are used for both the nuclear comoonent cooling and the fuel pool cooling system on panel 970.
(4.1.4.2)
S22 6.48 Mimic flowpath ending and start points are temporarily installed on panel 601 inserts 16A,17A, 20A, and 21A.
6.49 Color coding is inconsistent in the control room.
S22 6.50*
The blue mimic lines used on panels 680 and 601 S18 provide poor contrast with the dark brown
'519 panel background (Photo #42).
Similarly, the S23 gray lines on panels 800 and 904 are difficult to S42 see against the beige background of these panels.
(4.1.2.6)
- 6. 5'l When purple is used for mimic lines on panels'with a dark brown background the mimic lines are very difficult to see.
520 6.52*
Dotted white lines are used to represent both the S24 containment and feedwater injection lines on panels 601-17 and 601-20 (Photo #42).
(4.1.2.7)
S26 "6.53 On panel 800, mimics of air intake symbols at cooler selection
~
valves are blue (air flow suction), but to 'be consistent, they should be gray.
S42 6.54 There is poor contrast between the~ panel board (dark brown) and label background (black).
S19 6.55*
Additienal use of fTow direction arrows may be beneficial in the mimic on panel 904 (Photo #43).
(4.1.2.10)
S29 6.56 Some mimic lines lack direction of flowindications on panel 870-5.
534 6.57 There are temporary mimic sections attached with scotch tape on panel 601-19C.
S27 6.58*
A symbol should be devised which more clearly represents the suporession pool than that currently used on panel 601. The present open "U" shape is rather non-descript and is unlabeled (Photo #42).
(4.1.2.12)
S18 6.59" Starting and ending points are difficult to identify in 525 the containment and drysell purge mimics on panel 500 S26 and the nuclear co'mponent cooling mimic on panel 970.
(4.1.2.11)
B-28 m
Perry Unit 1 Audit Report Part B T
Part 3 B-7 PROCESS COMPUTERS PHOTO FINDING 7.1 There are no formal authorization procedures cr other administrative controls for software changes.
7.2 There is presently no provision for secure storage of the current operating software at a remote location.
7.3' When an operator acknowledges alarms on the CRT keyboard, all alarms are acknowledged; e.g., if there are 5 pages of alarms, all 5 pages are acknowlgdged when operator acknowledges page 1.
This feature does not allow a page-by-page acknowledgement of alarms.
Thbse are BOP alarms according to operators.
7.4 Abbreviations used in computer dialogue are not consistent with plant standard abbreviations; e.g., TH cn CRT means " Thrust" but plant standard for thrust is TRST.
7.5 The CRT keyboard on panel 680 includes a graphic function which is unnecessary for operators to use.
P5
- "7 6 Computer function keys on the process computer keyboard do not have engraved labels. Some of the keys have only temporary number labels.
Functions for some keys are shown on a temporary diagram placed on the panel above the keys.
7.7 There are no procedures available to the operator which cover.
the necessary actions to take in the event the process computer fails.
~
7.8 The computer system data point addresses are not cross-indexed by program n,ame, system / subsystem and functicnal group.
The operator must memorize at least the first 3 digits of point I.D. to get to a nonalphabetized li.st of components.
P2 7.9*
CRT displays are accessible and easily visible from a P3 standing operator position but are too high and at P4 unfavorable viewing angles from a fixed seated position 17 in front of the keyboard.
(4.4.4)
'*e..
B-29 em
o Perry Unit 1 Audit Report
)
Part B B-7 PROCESS COMPUTERS, cent.
PHOTO FINDING P1 7.10 It is difficult to distinguish between the characters C, 0, '0" (zero), G, D on CRT displays.
7.11 The computer system entry formats are confusing.
Entry request labels are below the blank entry space instead of above or to the left as recommended in.NUREG-0700.
7.12 There is insufficient spacing at the top and bottom of CRT pages. The first three lines and last two lines on CRT are
" compressed" and so dense that they are hard to read.
These are the entry (top) and ;tlarm (bottom) areas of the CRT page.
7.13*
Color standards for CRT displays are not fully developed but it appears that locally deyeloped standards will be in conflict l
with vendor supplied display formats.
(4.4.5) 7.14 There is an inconsistent use of color coding on CRT displays.
The colors used do not conform with commonly understood meanings for colors.
Example:
Alarm function includes yellow for unacknowledged
"~
alarm and green for acknowledged alarm.
7.15*
The computer printout is not prioritized.
(4.4.6) 7.16 The process computer printer used 'for recording trend data, computer clarms, and critical status information does not have a high-speed printing capability of at-least 300 lines per minute to permit pri'nter output to keep up with computer output.
7.17 When requested CRT display copies are printed remote frem the ope'rator, a print confirmation or denial message is not displayed on the operator CRT.
7.18 There is no positive indication of remaining printer paper supply - even if you open cabinet below the printer, you cannot see how much paper is left without pulling out the box.
7.19 There is no firm surface for paper to travel over to allow annotation cf copy while it is on the printer.
7.20 Printers must be turned "off" in order to reload paper. This may result 'n the loss of hard copy data during paper reloading.
7.21 There are no instructions for reloading paper or changing ribbons near or on the printer.
~
B-30
. ~ =
Perry Unit 1 Audit Report Part B T
Part 3 B-8 PANEL LAYOUT PHOTO FINDING 8.l*
CST level is not available in the HPCS or RCIC operating areas.
(5.11) 8.2*
No level indication is available in the HPCS operating area.
(5.12) 126 8.34 537 Water level indicatien on panel 680 is available only on recorders and very small indicators S38 in an area of high instrpment density.
This S39 impedes visual location and accurate reading S40 of this parameter.
(5.20) 8.4*
The operator must be able to determine drydel1 temperature adjacent to reference leg vertical rur.s.
(5.28) 8.5 The controls and displays on the remote shutdown panel have not been grouped by task sequence, importance or system function.
C9 8.6 Tiles on the Isolation Status Panels are not logically
""~
C10 grouped for easy pattern recognition; Example:
E12CRHR valves are not grouped together.
P27 8.7 On panel 680-38, there are inappro'$riately large, 4" diameter.
circular dial meters used for RFPT Control Valve Position and.
RFPT Speed indicator,s, while small 2" vertical scale meters are used for Reactor Pressure, Reactor Water Level, Main Steam Header Flow and Feedwater Pressure indicators.
C8 8.8 There appears to be a normal order of use for Main Steam Safety Relief Valve' controls on panel 601-19C.
The controls are not arranged in left-to-right, top-to-b,ottom, or other natural sequence.
- =m m B-31 mm b
Perry Unit 1 Audit Report
' Part B I
B-S PANEL LAYOUT, cont.
PHOTO FINDING S48 8.9 Control-display sequences of ADS valve controls and C8 displays on panels 601, 631 and 628 are not consistent R1 with each other.
128 8.10 The configuration of 4 sets of drain line and warm up valve controls on panel 601 is not consistent from left to right across the bottom of the panel.
543 8.'11 On panels 601-17, 18, 19, 20, the Division 1 and 2 544 power displays are not arranged in a consistent S45 lef t-to-right order as they are on the Diesel Generator Panel.
128 8.12*
The ordering of control.-display elements was not always in the recommended left-to-right or top-to-bottom arrangement.
Examples are:
(a.l.3.2) 8.12b* CCW chillers on panel 904 are arranged A C B from top-to-bottom.
(4.1.3.2.b)
'"5~.12c*
Control-display sequences on panel 628 show no correlation to those of related elements on panel 601-19.
No obvious numerical sequence was observed on panel 628.
(4.1.3.2.c) i 8.12d* On panel' 870-4, condensate inlet v'a'lves are arranged in a 2A -
2B - 2C - lA - 1B - IC top-to-bottom sequence.
(4.1.3.2.d)
~.
HFEB NOTE: Finding C8.3 contains the other part of this CEI finding.
P19 8.13 The RCIC out of service backlit indicators for Division 1 and Division 2 on panel 601-21B are not arranged in the same matrix i
I layouts.
~
8.14 The layout of redundant controls and displays with identical systems functions on panel 601 are not consistent for Division 1 and Division 2.
Some mirror imaging is involved with display arrangement.
B-32 i
Perry Uni.: 1 Audit Report Part B 3-3 PANEL LAYOUT, cont.
PHOTO FINDING S48 8.15*
Controls and displays are generally grouped by system R1 with identical layouts for repetitive groups.
Examples of exceptions include:
(4.1.3.1) 8.15a* The arranoements of relief valve indicating lights differs on panels 601-19, 628 and 631.
(4.1.3.1.a) 8.13b* Equipment drain system components are interspersed with floor drain system components on panel 881/882.
(4.1.3.1.b) 8.15c= Standby liquid, control system components are divided between panels 601-18 and 601-19.
(4.1.3.1.c) 8.15d* Drywell pressure and temperature indications are not placed adjacent to each other on panel 601, but are intarspersed with containment pressure and temperature.
(4.1.3.1.d) 8.15e* The RHR controls on panel 001 are separated into lef t-center-right panel segments.
The RCIC controls are distributed across center and right panel segments.
Relief valves controls are not aligned.
(4.1.3.1.e)
P21 8.16 On panel 601-16B, meters are grouped in long unbroken strings of 10 meters and 7 meters.
128 8.17*
Soraa panels contain undivided strings or matrices of related I components.
These adjacent controls w, groupings should be differentiated from ith demarcation lines, hierarchical labeling, spacing or color coding.
The follo.ving examples were.
noted:
VALVE STM LEAK-OFF switches on panel 865 (Photo #40)
Matrix of ARMS on Panel 902/906 Meters on Panel 970 (Photo #37).
Control-display elements on Panel 628/631 Control-display elements on Panel 881/882 (Photo #39)
(4.1.3.5) e B-33
Perry Unit 1 Audit Report Part 3 Y
Part 3 S-9 C/D INTEGRATION PHOTO FINDING Cl3 9.1 The RX Pressure Meter and Turbine Steam Chest Pressure Meter are used in coordination when bringing the turbine on line.
However, the RX Pressure Meter is too small to be read from the turbine control area.
(They are 11 feet apart.)
9.2*
The association between transfer switches and related controls is not evident on panel 001.
(4.1.3.3) 9.3*
The association of selector switches to recorders on panel 883 is not obvious.
(4.1.3.4) 9.4*
No reactor pressure ind.ication is available immediately
~
adjacent to safety relief valve controls.
(unnumbered - p5.3 interium DCRDR report) en-i
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we-B-34 n em
AUDIT REPORT Part C HUMAN FACTORS ENGINEERING CONTROL ROOM IN-PROGAESS AUDIT PERRY NUCLEAR POWER PLANT UNIT 1 CLEVELAND ELECTRIC ILLUMINATING COMPANY Part C.- This section contains a list of items identified by CEI which the hFEB team determined either to be invalid or corrected at the time of the in-progress audit.
C-1 CONTROL ROOM WORKSPACE PHOTO FINDING 1.l*
No indication of suppression chamber pressure has been provided.
(5.26) 1.2*
Panel 680 is four inches deeper than recommended.
(4.1.1.1)
- T.3*
The uppermost indicators on pcnel 680 are higher than recommended.
(4.1.3.9) 1.4*
The folicwing :entrollers were not easily reached from a normal operating position:
(4.2.1.1),
~
1.4b*
Four controllers on panel 800 are acunted low.
(4.2.1.15)
N HFEB NOTE: Finding Bl.18 contains the other part of this CEI finding.
1.5*
Out-of-service switches on panels 601, 870 and 877 are higher than recommended.
(4.1.3.8)
O OO C-1
Perry Unit 1 Audit Report Part C C-1 CONTROL ROOM WORKSPACE, cont.
PHOTO FINDING 1.6*
The top rows of indicators en panels 601, 870 and 877 are above recommended heights.
(4.1.3.7) 1.7*
The kitchen and toilets are outside the controlroom and relatively inaccessible.
(4.6.2)
C-4 CONTROLS PHOTO FINDING 4.l*
Based on experience at the simulator, an operator reported that the RCIC PUMP FLOW controller on panel 601 is too sensitive in the manual node.
(4.2.1.2) 4.2*
Operators report that the annunciator pushbutton controls sometimes trap fingernails when depressed.
(4.2.5.7) 4 h
6 99 C-2 i
Perry Unit 1 Audit Report Part C C-5 OISPLAYS PHOTO FINDING 5.l*
Sore indicators and recorders were found for which alternate process units may provide useful information to the operator:
(4.2.2.4) 5.la*
HEATER 1 LEVEL (N26-R042A) on panel 870-4 is incorrectly scaled in ibm /hr.
(4.2.2.4.a)
P7 5.'lc*
The feedwater check valve indicator on panel 612 is inappropriately scaltd'in amps.
(4.2.2.4.c)
HFEB NOTE: Finding Al.3 and 35.13 contain the other parts of this CEI finding.
5.3*
On panel 845, the REC 0F.3INER A and B DIFF PRESS scales are different thereby rendering comparative reading more difficult.
(4.2.2.11)
- "$'. 4
- The full core display contains a large matrix of multicolored lights.
When under stress, it is conceivable that the operator might miss one or two non-illuminated red bottom lights.
(5.16).
5.5*
Printed values on recorder charts may be difficult to read en ',
the following panels,:
(4.2.3.1) 5.5c*
The lower recorder scales on panel _883 are not visible from a normal operating position.
(4.2.3.1.c)
HFEB NOTE: Finding B5.47 contains the other parts of this CEI finding.
5.6*
The multi-pen recorder on panel 845 does not provide adequate distinction between markings.
(4.2.3.3) l G
99 C-3
Perry Unit 1 Audit Report Part C T
C-6 LABELS AND LOCATION AIDS PHOTO FINDING 6.l*
Pushbutton switch N22-F3 COB on panel 870-8 is incorrectly provided with a rotary switch escutchion (Photo #58).
(4.2.5.4) 6.2*
The following labels do not clearly describe the function of the associated components.
(4.1.5.9) 6.'2g*
Two physically similar, adjacent switches on panels 691 and 694 also have very similar d,esignations - STEAM LINE ORN VLS ISOL LOGIC TEST and MAIN STEAM DRAIN LOGIC TEST (Photo #52). The possibility of confusion should be reduced by more distinctive labels.
(4.1.5.9.g) 6.2p*
RFPT high pressure stop valve before and after seat drain control switches have incorrect numerical designations on panel 870-8.
(d.l.5.9.p)
HFEB, NOTE: Finding B6.26 contains the other parts of this CEI
,y.
finding.
i 6.3*
Identifying labels on the SRM/IRM,, drawers en panels 669 and 672 are not' distinctive against the panel background.
(4.1.5.11) 6.4*
Mimic layouts have,been utilized on most inserts of the main benchboards. However',a few opportunities still exist for which this technique may be appropriate.
These include the recirculation system on panel 680 (Photo #33) and the air removal system on panel 870-7, which are currently not mimiced.
(4.1.2.1) 6.5*
While quantitative displays on the "B" inserts of the main I
benchboards are generally grouped by system above related controls, these arrangements could be accentuated through use of demarcation lines to define system operating areas (Photo
- 13).
(4.1.2.4) 9
- e C-4
Perry Unit 1 Audit Report Part C T
C-7 PROCESS COMPUTERS PHOTO FINDING 7.l*
The computer is capable of displaying selected input information; however, the C91 has a limited number of inputs (about 800).
(4.4.2) 7.2*
The computer is not capable of automatic or manual switchover for processor f ailure since there is only one processor.
(4.4.3) 7.3*
Ribbon replacement on the computer printer is difficult.
(4.4.8)
C-8 ?Ai;EL LAYOUT PHOTO FINDING 8.l*
Emergency diesel controls and indications are located on panel 877, but controls and indications for the remainder of the electrical systems are located at the opposite end of the control room on panels 680 and 870.
(5.13)
~
8.2*
The relative positions of Division I and Division II controls..
on panels 622 and 623 differs between units.
(4.1.1.2).
8.3*
The ordering of control-display elements was not always in the recommended lef t-to-right or top-to-bottem arrangement.
Examples are:
(4.1.3.2) 8.3a*
Steam lines 6n panel 601 (18 and 19) are arranged B D A C.
(4.1.3.2.a)
HFEB NOTE: Finding B8.12 contains the other parts of this CEI finding.
OO C-5
.a AUDIT REPORT Part D HUMAN FACTORS ENGINEERING
~
CONTROL ROOM IN PROGAESS AUDIT PERRY NUCLEAR POWER PLANT UNIT 1 CLEVELAND ELECTRIC ILLUMINATING COMPANY Part D - Perry Photo Summary No.
ID #
Photo Descriotion 1-1 25 C1 Pointer coyers numerals on ceter scale 1-2 26 C2 Pointer obscures scale divisions on meter 1-3 24 C3
-Dense array of small meters 1-4 3
C4 Inconsistent color coding on pushbuttons 1-5 35 C5 Annunciator and RFPT pushbuttons are similar 1-6 36 C6 Annunciator and RFPT pushbuttons are similar 1-7 37 C5/6 Similar arrangement of controls 1-8 4
C5/6 Similar arrangement of controls 1-9 **~ 34 C7 Turbine Trip button not guarded 1-10 1
C8 Controls not arranged in sequence of operation 1-11 5
C9 Backlit indicator matrices (Div 1) 1-12 7
C9 Backlit indicator matrices (Div 1) 1-13 9
C9 Backlit indicator matrices (Div 1)
~
1-14 6
C10 Backlit indicator matrices (Div 2) 1-15 8
C10 Backlit indicator matrices (Div 2) 1-16 10 C10 Backlit'~ indicator matrices (Div 2) 1-17 23 C11 Different references vacuum / pressure meters 1-18 24 C11 1-19 25 C11 1-20 26 C12 VAC scale level adjacent to pressure ppertion of scale 1-21 27 C13 Separation of RX Press and Turbine Press indicators l-22 28 C13 1-23 29 Cl3 1-24 30 C13 1-25 31 Cl3 Wide angle shot 1-26 32 C13 Wide angle shot 1-27 33 C14 Missing labels 1-28 34 C15 Unlabeled pushbutton 9
ee 0-1
Perry. Unit 1 Audit Rcport Part 0 No.
ID #
Photo Description 1-29 2
Il Missing pressure indicator 1-30 3
Il LPCS PRESS ann. tile 1-31 4
Il Vertical LPCS meters amps / flow 1-32 5
Il Pump controls 1-33 6
I2 LPCS SUPP. P0OL suction valve 1-34 7
I3 Pressure recorder 1-35 8
I4 Missing Suppression Pool recorder 1-36 9,
I4 Actual location and suggested location 1-37 10 I4 Suppression Pool recorder 1-38 12 15 Column in control room 1-39 13 15 1-40 14 I5 1-41 15 16 Sharp corners on guardrail 1-42 16 17 CRT viewing problem 1-43 17 17 l-44 13 I8 Glare problem 1-45 19 18 1-46 20 19 Glare on recorders 1-47 21 Il0 Annunciator with multiple inputs 1-48 22 Il0 1-49 ""~23 Ill Annunciator windows prioity problem 1-50 24 I12 Alann windows provide panel location which are alarmed 1-51 25 112 1-52 26 Il3 Annunciator not located above associated controls 1-53 27 114 Separated annunciator (P601-17A) 1-54 28 114 Separated annunciator (P680) 1-55 29 115 Annuncialor arrangement (P877-2A) 1-56 30 115 Annunciator arrangement (P601-16) 1-57 31 116 Interchangable annunciator windows (PS77) 1-58 32 I17 Ambiguous annunciator tile legends (P601-18A) 1-59 2
118 L'ack of intent on annunciator tile (P601) 1-60 3
I19 Wordy annunciator (P601-21A) 1-61 4
I20 Annunciator font size (P680-3A) 1-62 5
I21 Axes of annunciator panels not labeled (P877) 1-63 6
122 No acknowledge control button for :1nunciators (P877) 1-64 7
122 Inconsistent annunciator control arrangement (P680-9A) 1-65 8
122 Inconsistent annunciator control arrangement (P680-10C) 1-66 9
123 Annunciator Emerg. Response Procedures 1-67 10 124 Control height problem (C61-001) e 99 0-2
O Perry Unit 1 Audit Report Part 0 tio.
10 #
Photo Description 1-68 11 125 RCIC Turbine Flow Control (C61-001) 1-69 13 126 Water level indicators on P680 (P680) 1-70 14 127 Identical layouts (P622) 1-71 15 127 Identical layouts (P623) 1-72 16 I28 Long string of instruments (P970) 1-73 17 I29 Controls not labeled - relationship to recorders not clear (P833)
~
l-74 3
M1 Annuncietor panels not labeled (P870-8A) 1-75 4
M2 Temporary annunciator legends (P870-1A) 1-76 5
M3 Illuminated blank annunciator tiles (P601-18A) 1-77 6
M4 Inconsistent type styles on annunciator panels (P680) 1-78 7
M4 1-79 8
M4 1-80 9
M5 Annunciator controls not labeled (P604) 1-81 21 M6 Hi density of displays and small labeling 1-82 22 M7 Demarcation problem 1-83 23 M8 (P680) 1-84 '*' 24 M9 Long string of meters 1-85 1
P1 CRT readability - Poof Distinction between letters 1-86 2
P1 1-87 3
P2 CRT visibility problem - seated operator 1-88 4
P2 CRT visibility problem - standing operator 1-89 5
P3 CRT #2 left edge not visible from seated position 1-90 6
P3 standing postion edge is visible 1-91 7
P4 CRT #3 view from seated keyboard position 1-92 8
P4 Standing in front of CRT #3 1-93 9
P5 Function keys not labeled and temporary labeis 1-94 10 P6 Heater 1 Pressure in PSI VAC 1-95 11 P6 Heater 2 Pressure in PSIA 1-96 12 P7
'Feedwater Inlet Check valve in AC amps 1-97 13 P8 CST level 0-100%
l-98 14 P9 RX PRESS meter - no meter scale 1-99 15 P10 Small vertical meters difficult to read 1-100 16 Pil Meters difficult to read 1-101 17 Pil-Long array of small meters difficult to read 1-102 23 P12 Mislabeled recorder scales ee D-3
_----------------------------.-------------_---------------_----------u
Perry Unit 1 Audit Report Part 0 T
~
[BL.
10 #
Photo Description 1-103 18 P13 Recorders hit bat handle selector switches 1-104 19 P13 1-105 20 P14 Recorders clear lowered bat handles 1-106 21 P14 Lowered bat handles 1-107 27 P15 Valve controls open left and close right
& open right - close left 1-108 28 P15 1-109 29 P16 Valve controls open left and close right
& open right - close left 1-110 30 P16 1-111 31 Pl7 Valve controJs open left and close right
& open right - close left 1-112 32 P18 Red and Black Manual Initiate Pushbuttons 1-113 33 P18 l-114 11 P19 Backlit Indicator Matrix layouts different 1-115 12 P20 Legend labels matrix location not identified 1-116 13 P21 Long meter strings 1-117 14 P22 Blank meters installed 1-118 15 P23 Obscured flow controller labels 1-119 16 P23 1-120
- 17 P24 Unlabeled PSIA meters without scales 1-121 16 P24 1-122 19 P25 Backlit pushbuttons/ indicators 1-123 20 P25 1-124 21 P26 Strip chart time history recorder 1-125 22 P26 l-126
-2 P27 Panel layout - large and small meters 1-127 3
P27 1-128 4
P27 l-129 5
P28 Pushbutton layout - Manual Scram & Man. isolation 1-130 6
P28 1-131 7
P28 1-132 8
P28 1-133 9
P29 Equipment not installed 1-134 10 P29
~
1-135 11 P30 Scale markings on log scales of Rad Mon Recorders 1-136 12 P30 1-137 13 P30 1-13 8 14 P30 2-1 35 P31 Unlabeled Turbine Trip and Reset pushbuttons 2-2 36 P31 2-3 37 P31 2-4 1
P32 Pushbutton color coding e
6e D-4
T o
s Perry Unit 1 Audit P.eport Part 0 I
flo.
ID #
Photo Description 2-5 15 P33 Reactor mode switch not installed 2-5 10 P34 Inconsistent scale multipliers on flow meters 2-7 17 P34 Terminet' printer 2-8 18 P35 Sequence of Events printer and printout 2-9 19 P35 2-10 20 P35 2-11
'l S1 Mimic color code
'2-12 2
S2 Label problem en mimic 2-13 3
53 Unlabeled white lights 2-14 4
S4 Lights not labeled 2-15 5
55 Unlabeled meters 2-16 6
S6 Missing labels 2-17 7
57
. Inconsistent labeling 2-18 8
58 Inconsistent labeling 2-19 9
59 Heirarchical labeling problem 2-20 10 S10 Obscured labels in sitting position 2-21 11 S11 Obscured labels in standing position 2-22,, 13 12 S12 Demarcation problem 2-23 S13 Demarcation problem 2-24 14 514 Demarcation 2-25 15 515 Isolation valve control panel 2-26 16 S16 Lack of labels on meter, groucs, no demarcation 2-27 17 S17 Demarcation feasible 2-28 18 S18 Mimics 2-29 19 S19 Mimics.
2-30 20 S20 Mimics 2-31 21 S21 Incorrect mimic 2-32 22 S22 Unclear mimics 2-33 23 523 Poor contrast on mimic 2-34 24 524 Inconsistent use of color 2-35 25 525 Start point on mimic not easily indentified 2-36 26 S26 Inconsistent use of color in mimic 2-37 27 527 Unclear symbols in mimic 2-38 28 S28 Iocorrect labels 2-39 29 S29 Missing arrows on mimic 2-40 30 S30 Reversed labels 2-41 31 S31 Reversed labels 2-42 32 S32 Confusing labels 2-43 33 S33 Wrong nameplate label 2 44 34 534 Temporary mimic using tape 2-45 35 535 People.,
2-46 36 S36 General CR shot 96 0-5
~.
Perry Unit 1 Audit Report Part 0 No.
10 #
Photo Description 2-47 1
537 Density problem with small instruments 2-48 2
S38 Density problem with small instruments 2-49 3
S39 Density problem with small instruments 2-50 4
540 Density problem with small instruments 2-51 5
S41 Hi instrument density 2-52 6
541 2-53 7
S42 Hi instrument density 2-54 8
S42 2-55 9'
S43 C/D integration problem 2-56 10 S44 C/D integration problem 2-57 11 545 C/D integratjon problem 2-58 20 546 No descriptive labels 2-59 21 2-60 22 547 Mosaic P601-16 2-61 23 Mosaic P601-21 2-62 24 Mosiac P601-20 2-63 25 Mosiac P601-17 2-64 26 Mosaic P601-18 2-65 27 Mosaic P601-19 2-66 28 Mosaic P601-22 2-67,,_ 31 S48 Panel layout problem 2-68 32 R1 Panel layout problem 2-69 i
R2 Left end of P601
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