LN-DYM in Kittilä 737 almost stalled when suddenly trimmed up for 12 sec.
Similarities to Flydubai in Rostov ?
In Kittilä the cause is reported the de-icing fluid ingress, but does it explain the trimming ? I have no background on flying ( only as passenger) but it seems strange that pilots did fly back home after such incident and reported only afterwards ? How was the ice then found to be the cause, days later ?
I can not post the link to aibn but google it with :
"Report on the serious aircraft incident during approach to Kittilä airport in Finland (EFKT) on 26. December 2012 with a Boeing 737-800, LN-DYM, operated by Norwegian Air Shuttle ASA"
Description
During approach to Kittilä (EFKT) in Finland on 26 December 2012, LN-DYM, a Boeing 737-800 NG on Norwegian Air Shuttle's (NAS') air service NAX5630 from Helsinki airport (EFHK), came close to stalling. The outcome of a stall would most likely have been catastrophic, primarily because the elevator system at that time did not function normally. The elevator system worked only at a ratio of 1:250.
AIBN's investigation has uncovered that de-icing fluid had ingressed the tail section and frozen on three or four of the input cranks for the aircraft's two elevator Power Control Units (PCUs) and thus prevented them from functioning as intended."