ALTONA, N.Y. -- The New York Public Service Commission has launched an investigation into the Noble Wind Farm accident in Altona and will make its own determination on the cause of the collapse.

Public Service Commission spokeswoman Anne Dalton said the agency requested information from Noble on turbine equipment and operations before the collapse, debris scatter and whether the company had proper emergency response and maintenance procedures, as well as whether they were followed.

She said the company has cooperated with the investigation, and a review of the information is under way.

Dalton said it is unclear how long the investigation will take, but added it is the first time the commission has investigated a turbine collapse.

Noble Environmental Power issued a statement in late March blaming the March 6 turbine collapse on a "wiring anomaly" that was exacerbated by a power outage at the wind farm.