CYRB
As a once earth bound provider of signals, I have this observation:
Report seems spot-on but for maybe one point; the perceived inadvertent movement (by a pilot) of control yoke during the capture phase of the approach.
The ILS (30-yr. old parts, relocated to YRB, contrary to ICAO SARPs) is known to radiate False-Capture (FC) signals. This antenna can further increase FCs in high humidity (fog, rain). FC complaints resulted in TC posting “Safety Notices” to switch from capture to approach only within ~ 8-degrees of centreline (re-Posted by NC, ~ 2010). Flight Inspection(s) don’t report FC, Safety Notice eliminates the need. But, ancillary facilities are required if flight crews are to identify a FC. All that being said; the captain didn’t catch the FC for whatever reason (A/C switched to “coast mode” on flight-director???) Seems the FO noticed something wrong, the captain eventually did, but too late. If the “RU” NDB (2.1 NM before threshold, on centreline) was in service (decommissioned just months prior) they may have realised sooner how far “inland” they were?
. . . just my observations as a once once earth-bound provider . . . .