According to a notice to mariners (BfS) of the WSA Ems-Nordsee, the return of the lighthouse Norderney LFV No. 320400 (INT B 1054) has been changed from 12 to 14 seconds. The changed identification Fl (3) W.14s is expected to apply until 20 May. Shipping is warned and asked to pay attention.
According to the WSA, the cause lies in the lighthouse's drive unit. This is serviced regularly. However, over the decades, the gearbox has worn out and become sluggish, causing the optics to turn more slowly. Until the special spare parts have been purchased and the repair work has been carried out, the official identification has been adjusted.
The Norderney lighthouse has the only left-turning beacon on the German North Sea coast. It was equipped with a 3.5 tonne Fresnel lens from France. The complicated optics consist of 1018 ground prisms and 24 lens fields. The light can still be seen at a distance of 20 nautical miles from the island under normal visibility conditions. As part of the general modernisation of beacons on the German coast, the identification of the lighthouse was changed in 1976 following the installation of a metal halide lamp. Since then, a group of three white flashes have been emitted every 12 seconds from dusk until dawn. Now they only return after 14 seconds.
Every now and then there are malfunctions and failures of beacons. What this means for shipping:
The listed Norderney lighthouse was completely renovated in 2004. Around 40,000 visitors a year come to see the island's tallest structure, which is almost 60 metres high and has 252 steps. The lighthouse stands on a 10 metre high dune in the centre of the island. However, it is not only a tourist attraction, but above all still an important sea mark for shipping. As the GPS signal (on which the Automatic Identification System (AIS) is also based) is repeatedly subject to considerable, possibly deliberate, interference, the maintenance of physical sea markers is once again being prioritised.

Editor Travel