Russia’s Federal Air Transport Agency is considering to ground all Tupolev 154M aircraft by July 2011 if certain modifications are not made.
The Agency reported 10 cases of power supply failure of, seven of which were due to battery overheating.
Cases of fuel system malfunction were also noted.
The manufacturer should issue mandatory changes to the airplane to improve safety, according to Russian media.
More information:
- RBC news article (in Russian)
- Russia Issue Ultimatum On Tu-154M Upgrades (Aviation Week)
- Recent Tu-154 accidents (ASN)