SINGAPORE -- A Republic of Singapore Navy officer has been found responsible for a fatal collision earlier this year between the RSS Courageous and a massive container ship that killed four, the port authority said on Friday.
Lieutenant Ng Keng Yong made 'errors of judgment' on Jan 3, when he instructed a trainee to manoeuvre the RSS Courageous into the path of a Dutch-owned cargo ship, said Senior Director of the Maritime and Port Authority (MPA) Lee Seng Kong.
The ports authority revealed the findings of its three-month-long investigation into the collision between the RSS Courageous, a 500-ton submarine hunter, and the cargo ship ANL Indonesia in the eastern Singapore Straits off Pedra Branca.
The accident killed four servicewomen and left eight other officers injured. One of the servicewomen was never found, and is presumed dead.

The incident was described by former Chief of Navy Rear- Admiral Lui Tuck Yew as the worst naval accident in Singapore's history.
Lt Ng was guiding a trainee, fellow officer Lt Chua Chue Teng, who was in control of the boat at the time of the collision.
According to RSN regulations, the officer-of-the-watch - in this case Lt Ng - was in charge, and not the trainee.
'By not intervening, the officer of the watch had shown that he was either not fully aware of the situation around him or had wrongly agreed with the actions and instructions given by the trainee...thus he had either failed to keep a proper watch or had made similar errors of judgment as the trainee,' said the report.
The report also said that the collision was not due to failure of machinery or equipment, fatigue of crew members or weather conditions.
Mr Lee said the findings would be sent to the state coroner.
'It's up to the coroner and the public prosecutor to decide what measures to take,' he said.
Defence Ministry concurs with findings
Defence Minister Tony Tan told reporters on Friday that his ministry agreed with the MPA's finding that the incident was the result of an error of judgement, and that it was next up to the coroner on the measures to be taken. -- AP
Source: Straitstimes website
Current Affairs Manager, COB
Singapore