The repair attempted during July was not successful, and the noise problem on CCD2 persists. The situation will remain like this during semester 22B since the only possible solution requires a major intervention, which is not planned for the current semester.
Users are advised to choose an appropriate dither strategy (*) minimizing the effects of the bad amplifier on their science data and/or to place targets or spectral features of interest on other parts of the detector. See this document for further description. For MOS and IFU-R, the same strategy can be applied as well (does not work for IFU-2). The main additional difficulty is the wavelength calibration since some arc lines are wiped out and the autoidentify task may fail. In this case, the lines identification has to be done interactively.
(*) For dithers we recommend +/-30 arcseconds in P (across the detector columns) in the case of imaging, and for spectroscopy a spectral dither size of at least +/-15nm for B1200, +/-25 nm for R831, +/-30nm for B600, and +/-45nm for R400.