United States authorities on Sunday said preliminary reports show that a wintry weather condition was among the factors that contributed to the Chopper crash that killed Herbert Wigwe, the Group Chief Executive Officer, Access Holdings Plc.

Wigwe, his wife and son were onboard the helicopter when it crashed in California near the Nevada border on Friday.

Also on board was Abimbola Ogunbanjo, the former group chairperson of Nigerian Exchange Group Plc.

Read also: Helicopter crash: Access Bank bids farewell to Herbert Wigwe

Speaking during a media briefing on Sunday, Michael Graham, a National Transportation Safety Board (NTSB) member, said officials were on the scene to gather perishable evidence.

Graham said the team was “methodically and systematically reviewing all evidence” and considering all potential factors to determine the probable cause of the crash.

He added that although the information provided was only preliminary, witness reports suggested that a wintry weather condition was among the factors that contributed to the accident.

“The crew consisted of a pilot in command and a safety pilot. The accident flight was operated by Orbic Air LLC as a Part 135 charter flight

“Witness reports of the weather conditions at the time of the accident suggest rain and a wintry mix.

The helicopter was not equipped with a cockpit voice recorder or a flight data recorder. This helicopter was not required to be equipped with those types of recording devices,” Graham said

He added that the NTSB would look into the chopper’s airworthiness; maintenance and structure of the helicopter, operations, meteorology, and air traffic control.

“Parties to the investigation include the FAA and Orbic Air LLC. As the investigation continues, other parties could be named,” he said.

Ifeoma Okeke-Korieocha is the Aviation Correspondent at BusinessDay Media Limited, publishers of BusinessDay Newspapers. She is also the Deputy Editor, BusinessDay Weekender Magazine, the Saturday Weekend edition of BusinessDay. She holds a BSC in Mass Communication from the prestigious University of Nigeria, Nsukka and a Masters degree in Marketing at the University of Lagos. As the lead writer on the aviation desk, Ifeoma is responsible and in charge of the three weekly aviation and travel pages in BusinessDay and BDSunday. She also overseas and edits all pages of BusinessDay Saturday Weekender. She has written various investigative, features and news stories in aviation and business related issues and has been severally nominated for award in the category of Aviation Writer of the Year by the Nigeria Media Nite-Out awards; one of the Nigeria’s most prestigious media awards ceremonies. Ifeoma is a one-time winner of the prestigious Nigeria Media Merit Award under the 'Aviation Writer of the Year' Category. She is the 2025 Eloy Award winner under the Print Media Journalist category. She has undergone several journalism trainings by various prestigious organisations. Ifeoma is also a fellow of the Female Reporters Leadership Fellowship of the Wole Soyinka Centre for Investigative Journalism.

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