The two Peruvians were co-pilot Igor Castillo and mechanic Luis Ramos, the company said in a news release.
Company officials said they had no immediate information on what might have caused the crash. They said a senior management team was headed to Peru to assist local authorities in the investigation.
Peterson denied reports in local media suggesting the aircraft might have been overloaded.
“I can say categorically that the aircraft was not overloaded,” he said, adding that the load list was destroyed in the crash but company officials had a good idea of what was on board and believe the Chinook, combined with its load, weighed about 47,000 pounds.
That would be 4,000 pounds less than its maximum gross limit. The helicopter weighs 21,000 pounds empty, Peterson said.
Contributing: Andrew Wittenberg
- Families face uncertainty, unite in prayer as...
- Longtime teacher, BYU instructor appointed...
- Utah judge could be first to rule on state...
- Former Attorney General John Swallow left...
- Federal website fixes allowing more Utahns to...
- Expelling Santa from school? Holiday...
- Seeing is believing: Doctor, family say...
- Utahns react to death of Nelson Mandela
- Utah judge could be first to rule on... 103
- Should parents pay extra for... 46
- Utah A.G. John Swallow: 'No way to... 25
- Seeing is believing: Doctor, family say... 25
- Tea Party Express endorses Sen. Mike... 25
- Candidates seeking to replace Swallow... 19
- 'Little Bulldog' will take a break; the... 18
- Gov. Gary Herbert unveils $13.3 billion... 18