Time sequence of difference images in the AIA 94, 304, and 335 Å bands over a field of view of 100′′ by 45′′. The last row shows images of the intensity rms during the sequence (19:00 to 19:45 UT), while the first row shows HMI images of continuum intensity and longitudinal magnetic field, saturated at ± 100 G in the right column. The 335 and 94 Å images are one minute averages to reduce noise. The small bright structure near the middle of the loop is an unrelated phenomenon. The images have been rotated by 39° with respect to the solar E-W direction.