NUREG/CR-4600, Forwards NUREG/CR-4600, Human Factors Study Conducted in Conjunction w/Mini-Round Robin Assessment of Ultrasonic Technician Performance, for Use in Upgrading Ultrasonic Testing Technician Performance.W/O Encl
| ML20244E337 | |
| Person / Time | |
|---|---|
| Issue date: | 09/30/1986 |
| From: | Russell W NRC OFFICE OF NUCLEAR REGULATORY RESEARCH (RES) |
| To: | Woody C FLORIDA POWER & LIGHT CO. |
| Shared Package | |
| ML20235B538 | List:
|
| References | |
| FOIA-87-652, RTR-NUREG-CR-4600 NUDOCS 8610090176 | |
| Download: ML20244E337 (1) | |
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DISTRIBUTICM:
Central Files MTB R/F September 30, 2986 ~ GCwalina DPersinko Mr. C. O. Woody Vice President Nuclear Operations l Florida Power & Light Company Post Office Box 14000 Juno Beach, FL 33408
Dear Mr. Woody:
Enclosed is a copy of NUREG/CR-4600, " Human Factors Study Conducted in '
I Conjunction with a Mini-Round Robin Assessment of Ultrasonic Technician Performance," which presents the results of a study conducted by Pacific i Northwest Laboratory as part of the staff's Maintenance and Surveillance Program Plan. The study investigated f actors affecting human reliability in ultrasonic (UT) in-service inspection through interviews and questionr.aires; evaluation of ultrasonic inspection equipment to determine its conformance with accepted human engineering principlec was also performed. UT inspections of stainless steel pipe specimens containing intergranular stress corrosion cracks (IGSCC) were shown using a method known as the Relative Operating Characteristic to portray UT technician performance.
Conclusions reached in the study included: 1) UT technicians did not perform significantly better during this study than in a previous study despite the fact that the technicians in the present stud desnonstration test at the EPRI-MDE Center, none of2)y the had passed used UT equipment the performance was judged to be completely acceptable on the basis of its human engineering design characteristics (e.g., controls too small and closely spaced for manipulation with gloved hands, control scales are too small and difficult to read, search unit difficult to grasp with gloved hands) and 3) the AOC method of analyzing technician performance worked exceedingly well.
The report is provided to you for your use in upgrading UT technician performance; reconnendations included in the report have not presently received staff endorsement.
Sincerely.
.kP originnt Signed tf William T. Russell, Director O
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Division of Human Factors Technology Office of Nuclear Reactor Replation
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bec: H. Denton J. C. Spanner, P
Enclosure:
DW/DD2/LTR TO WOODY R. Vollmer As stated z' *SEE PREVIOUS ORC FOR B. D. Liaw
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