Hawaii

The Solar Impulse 2's team says the batteries were over-insulated and became overheated on day one of the Japan-Hawaii leg. The team said Saturday that it monitored the situation throughout the flight but could not decrease the temperature.

The plane won't fly before the beginning of August as the team works to replace and repair damaged parts.

The plane landed in Hawaii on July 3 after completing a 118-hour voyage that broke the record for the world's longest nonstop solo flight.

Pilot Andre Borschberg and his single-seat aircraft landed at Kalaeloa, a small airport outside Honolulu. 

His 120-hour voyage from Nagoya broke the record for the world's longest nonstop solo flight, his team said. The late U.S. adventurer Steve Fossett set the previous record of 76 hours when he flew a specially-designed jet around the globe in 2006.

But Borschberg flew the Solar Impulse 2 without fuel. Instead, its wings were equipped with 17,000 solar cells that charged batteries. The plane ran on stored energy at night.