AV Herald seem to be referring to the letter above with this information.
On Feb 22nd 2018 Rosaviatsia recommended based on preliminary findings (without disclosing those findings) to pay attention to following points:
- preparation of aircraft for flight and decision making about conducting a flight with delayed failures and malfunctions in accordance with minimum equipment list requirements
- interaction between crew members, in particular to continue running the relevant checklists after being interrupted or when a checklist section has not been completed (e.g. turn on heating of pitot probes)
- performance of standard operating procedures in standard, non-normal and emergency operation
- crew actions in case of aircraft system failures (flight and navigation systems, control systems)