The cask has been submerged in the cask pit inside the SFP, and the workers have started to transfer fuel assemblies into the cask (from 3:18PM Japan Standard Time)
(UPDATE 2) From Nikkei Shinbun (11/18/2013, 11:16AM):
Removal of the fuel assemblies will continue tomorrow (November 19), the cask will be lowered to the ground on November 19. It will take about a week for the first cask to be transported to the Common Pool 100 meters away.
(UPDATE) Wrong schedule. From NHK News at 12:05PM:
AM: The cask is being submerged into the cask pit.
At 3PM: Start removing the 22 fuel assemblies (unused, new assemblies) using the fuel handling machine into the cask
According to NHK News (11/18/2013 at 6:07AM), the schedule is:
AM: Using the fuel handling machine, put fuel assemblies (unused, new, 22 of them) into the cask submerged in the cask pit
At 3PM: Lower the cask using the gantry crane
It must be proceeding well so far, as the bright pink headline banner on NHK's homepage (circled in blue below) only says "We will let you know as soon as there is further news."
The fuel handling machine is operated by the workers with long experience of handling the nuclear fuel, according to the workers who regularly tweet from Fukushima I NPP.
Here's the link to the 7-page summary of the fuel removal operation, from TEPCO (11/13/2013).
Just as the independent journalist Ryuichi Kino said previously, "Fuel removal conducted in the daytime, and debris removal at night".
Perhaps as a small pushback against the LDP politicians who demand "acceleration" and "ahead of schedule" work, TEPCO says on the 2nd page in red letters:
After conducting the above actions, we will proceed with fuel removal with “first priority given to safety”, not to achievement of the schedule.
Mainichi Shinbun (11/13/2013) says the reactor building cover over the Reactor 4 operating floor was built with 4,200 tons of steel beams, the same amount of steel beams that were used to build Tokyo Tower. If I remember right, the design and construction was by Kajima. It was designed and built so that the weight of the heavy cover would not be borne by the original reactor building.