PON1/2439

Notification details

Status	Completed
First observed date	06 November 2013
First observed time	16:40
Incident type(s)	Oil release
Organisations involved	BHP Billiton
Installation	Douglas FPSO OSB
Installation type	Fixed
Field	DOUGLAS
Latitude	53° 32' 17.0'' N
Longitude	3° 34' 32.0'' W
Quadrant / block no.	110 / 13

Oil release details

Oil product released	Mineral Oil
How was the quantity released determined
Total quantity of oil released	.053 tonnes

Formal investigation

Formal investigation ever opened	Yes

Close off details

Release ever ongoing	No

Source details

Source	Mechanical failure of aft securing chain. Chain was drawn into thruster causing a minor leak from the lip seal.