Netaji Subhash Chandra Bose International Airport, Calcutta, India
Type of flight:
Riga International Airport, Riga , Latvia
During cruise the crew became aware of fumes and smoke in the cockpit. The crew went onto oxygen, declared a MAYDAY and diverted to Riga, Latvia. Subsequent investigation revealed that the smoke and fumes were as a result of an overheated cockpit door lock solenoid, which had failed due to spring clip being incorrectly installed during the manufacture of the unit.