It Was Raining When Crash Occurred US Authorities says

United States authorities say that witness reports suggest it was raining when a copter crashed in California near the Nevada border on Friday, killing the Group Chief Executive Officer of Access Holdings Plc, Herbert Wigwe, his wife, son; as well as a former Group Chairman of the Nigerian Exchange Group, Abimbola Ogunbanjo.
Member of the National Transportation Safety Board (NTSB), Michael Graham, at a briefing on Sunday, disclosed that Witness reports to the weather condition at the time of the accident suggest rain and a wintry mix.
He added that the team methodically and systematically reviews all evidence and considers all potential factors to determine the probable cause of the crash.
The NTSB official said the Board would look into the chopper’s airworthiness; maintenance and structure of the helicopter, operations, meteorology, and air traffic control, according to Graham.