2005 Koeberg SCRAM
On 11 November 2005 the plant undergoes an emergency shut down following an incident related to power controls within the plant. The incident is thought to be to a routine SCRAM. Then on the evening of the 23 November 2005, a routine inspection of the backup safety system revealed a below-specification concentration of an important chemical, which had resulted in a controlled shutdown of the reactor. On Christmas Day 2005 an 8 cm (3 in) loose bolt finds its way into the rotor of Unit 1, causing damage to some of the 105 bars that line the device, and putting the generator out of action for three to nine months, depending on the availability of spares. Investigations are still underway as to how this occurred, or whether the two incidents are related.
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