MRT Corp chief executive officer Mohd Zarif Hashim said the opening timeline had to be revised because of incomplete activities during the trial operations.

“The trial operations for the MRT Putrajaya Line Phase 1 section has been ongoing since April 29,” he said in a statement.

“A total of 16 trains have been running between Kwasa Damansara MRT Station and Kampung Batu MRT Station in full-service mode daily but without passengers to simulate actual operations.

“During this period, the ‘final detailed inspection and system performance demonstration’ were carried out. However, the two activities have not been completed.

“As a result, MRT Corp is not able to take possession of the asset from the appointed turnkey contractor.”

Zarif said the MRT trains had clocked over 3,000 hours of trial operations and a “large amount” of data had been gathered.

“Having gone through the data ourselves, we detected that out of hundreds of system modules being implemented, two modules require further refinement.

“We need to ensure all primary, secondary and tertiary layers of systems are stable before we take possession of the asset and clear it for operations,” he said.

Previously, Phase 1 had been scheduled for opening in August but was postponed to mid-November.

The MRT Putrajaya Line (formerly known as the Sungai Buloh-Serdang-Putrajaya Line) covers a span of 56.2km, with 36 stations from Kwasa Damansara to Putrajaya.

Phase 1 runs over 17.5km from Kwasa Damansara to Kampung Batu and will link places such as Damansara Damai, Bandar Sri Damansara, Kepong, Jinjang and Kampung Batu.