ML20216K087
| ML20216K087 | |
| Person / Time | |
|---|---|
| Site: | Trojan File:Portland General Electric icon.png |
| Issue date: | 09/15/1978 |
| From: | Klingler G, Nolan F, Sniezek J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| To: | |
| References | |
| PNO-78-165, NUDOCS 9804220089 | |
| Download: ML20216K087 (1) | |
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PRELIMINARY NOTIFICATION 0/
1 September 15, 1978 PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE--PNO-78-165 I
1 This preliminary notification constitutes EARLY notice of an event of POSSIBLE safety or public interest significance.
The information presented is as initially received without verification or evaluation and is basically all that is known by IE staff on this date.
l Facility:
Portland General Electric Company Trojan Nuclear Power Plant i
Rainier, Oregon Docket No. 50-344
Subject:
CRASH OF LIGHT AIRCRAFT ADJACENT TO SITE WITH RESULTING LOSS OF THREE OF FOUR SOUP.CES OF OFF-SITE ELECTRICAL POWER The licensee notified the Region V (San Francisco) Resident Inspector of the crash of a light twin-engine aircraft adjacent to the Trojan site at approximately 2:15 a.m. on September 14, 1978.
The aircraft was reported by plant guards to have experienced apparent j
l engine trouble, struck " static" protective / guard cables adjacent to l
~.
electrical distribution lines and crashed into a mountainside approxima'tely.
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3/4 to one mile west of the Trojan site.
One of two occupants of the~
i-plane was killed and the other is in critical condition in a local l
hospital.
Broken guard cable (s) caused faults which disabled three of four sources of off-site power to the Trojan plant.
Emergency on-site diesel power i
sources responded normally.
Efforts were underway on the morning of September 14 to clear faults and restore the off-site electrical distribution system to normal operatice, l
There were no malfunctions of safety-related plant systems.
The Region l
V Resident Inspector verified the status of plant systems upon arrival l
at the site at approximately 8:00 a.m. on September 14, 1978.
No l
anomalies were identified.
The plant was in cold shutdown at the time of'the occurrence, pending resolution of Control Building design dis-crepancies and associated public hearing.
l l-The occurrence is being reported by local news media.
CONTINUED Cl
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9 Page 2 September 15, 1978
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PN0-78-165 Continued NRC's Region V Resident Inspector was notified by the Plant Superintendent of this occurrence upon arrival on-site at approximately 7:50 a.m. on September 14, 1978.
The Region V Resident Inspector will continue to follow the licensee's efforts to restore the off-site electrical distri-l bution system to normal status.
Contact:
GKlingler, IE x28019 FNolan, IE x28019 JSniezek, IE x28019 Distribution:
Transmitted H St / h/[
Chairman Hendrie Commissioner Bradford S. J. Chilk, SECY Commissioner Kennedy Commissioner Ahearne C. C. Kammerer, CA i
Commissioner Gilinsky (For Distribution)
Transmitted: MNBB J M fC' P Bldg /A',5Y J. G. Davis IE L. V. Gossick, EDO H. R. Denton, NRR Region M //O'[
S. H. Hanauer, EDO J. J. Fouchard, PA SS Bldg /M)~7 (MAIL)
N. M. Haller, MPA C. V. Smith, NMSS
H. K. Shapar, ELD l
PRELIMINARY NOTIFICATION
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