HONOLULU -- A pilot whose helicopter crashed on Kauai on Sunday died Tuesday morning at Wilcox Memorial Hospital.

The chopper went down at about 5:40 p.m. in Lihue's Kapaia Valley on Christmas Day.

It was a five-seater operated by Inter-Island Helicopters.

Jonathon D'Attilio was helping to fight a brush fire when he crashed into a lake, the Federal Aviation Administration said.

The chopper's wreckage was recovered on Monday and taken to Lihue Airport. The National Transportation Safety Board is going back to the Garden Isle next week to try and determine the cause of the crash.