SEPANG: The gas leak reported at Sepang Aircraft Engineering’s Southern Support Zone of Kuala Lumpur International Airport (KLIA) has been traced to an abandoned skid tank, left unattended for nine years.

KLIA police chief ACP Azman Shari'at (pic) said the leaking gas has been identified as methyl mercaptan or methanethiol, a colourless flammable gas with a distinct odour resembling rotten eggs or cabbage.