[en] Automatic translation: The AVR test power plant was built in the 3rd quarter of 1971 with a Time availability of 94.5% operated. In July 71 with 10.82 * 10 ⁶ kWh the highest gross monthly work since commissioned in December 1967. The reactor was operated twice in the reporting period Interrupted faults: 1) On August 26, 1971, due to a voltage drop in the RWE network (effects of thunderstorms) the generator disconnected from the network. The reactor was then shut down. While of the downtime, urgent repairs were made executed. After completion of the work, the power plant was opened on August 28, 1971 started again. 2) On September 7th, 1971 the power station had to break due to a hydrochloric acid breakthrough in the condensate desalination plant conditional high Cl and Fe values​​in the feed water except Be put into operation. After replacing the entire amount of feed water several times the reactor was restarted on 9/10/1971 and the Generator on 9/11/1971 at 2.13 a.m. again with the grid synchronized.