A firefighting helicopter flies around a Spanish potash mine after three workers got trapped following an underground mine collapse, in Suria, Spain, March 9, 2023. REUTERS/Nacho Doce 

A firefighting helicopter is seen on the ground near a Spanish potash mine after three workers got trapped following an underground mine collapse, in Suria, Spain, March 9, 2023. REUTERS/Nacho Doce 

A firefighting helicopter flies around a Spanish potash mine after three workers got trapped following an underground mine collapse, in Suria, Spain, March 9, 2023. REUTERS/Nacho Doce 

A firefighting helicopter flies around a Spanish potash mine after three workers got trapped following an underground mine collapse, in Suria, Spain, March 9, 2023. REUTERS/Nacho Doce 

A firefighting helicopter flies around a Spanish potash mine after three workers got trapped following an underground mine collapse, in Suria, Spain, March 9, 2023. REUTERS/Nacho Doce 

Rescue crews operate on the shore, after a firefighting helicopter crashed at the sea during a wildfire raging on the island of Samos, Greece, July 13, 2022. REUTERS/Sofianos Drapaniotis 

Rescue crews operate after a firefighting helicopter crashed at the sea during a wildfire raging on the island of Samos, Greece, July 13, 2022. REUTERS/Sofianos Drapaniotis 

A helicopter arrives carrying injured people for treatment following a cloudburst near the holy Amarnath cave shrine, at Sher-i-Kashmir Institute of Medical Sciences hospital in Srinagar July 9, 2022. REUTERS/Danish Ismail 

An injured is rushed for treatment after he was evacuated in a helicopter following a cloudburst near the holy Amarnath cave shrine, at Sher-i-Kashmir Institute of Medical Sciences hospital in Srinagar July 9, 2022. REUTERS/Danish Ismail 

An injured is rushed for treatment after he was evacuated in a helicopter following a cloudburst near the holy Amarnath cave shrine, at Sher-i-Kashmir Institute of Medical Sciences hospital in Srinagar July 9, 2022. REUTERS/Danish Ismail 

An injured is rushed for treatment after she was evacuated in a helicopter following a cloudburst near the holy Amarnath cave shrine, at Sher-i-Kashmir Institute of Medical Sciences hospital in Srinagar July 9, 2022. REUTERS/Danish Ismail 

An injured is rushed for treatment after she was evacuated in a helicopter following a cloudburst near the holy Amarnath cave shrine, at Sher-i-Kashmir Institute of Medical Sciences hospital in Srinagar July 9, 2022. REUTERS/Danish Ismail 

A helicopter fetches water from the Sun Moon Lake for a fire accident in the area, in Nantou, Taiwan May 15, 2021. REUTERS/Annabelle Chih 

Paramedics transport Brandon Giovani Hernandez, who was injured during the accident where an overpass of the metro partially collapsed with train cars on it at Olivos station, toward a helicopter as he is transferred to another hospital, in Mexico City, Mexico May 4, 2021. REUTERS/Luis Cortes 

Paramedics transport Brandon Giovani Hernandez, who was injured during the accident where an overpass of the metro partially collapsed with train cars on it at Olivos station, toward a helicopter as he is transferred to another hospital, in Mexico City, Mexico May 4, 2021. REUTERS/Luis Cortes 

Police officers keep guard at an accident site where a helicopter crashed into a sidewalk in Apodaca, on the outskirts of Monterrey, Mexico April 23, 2021. REUTERS/Daniel Becerril 

Rescue workers and forensic technicians are seen at an accident site where a helicopter crashed into a sidewalk in Apodaca, on the outskirts of Monterrey, Mexico April 23, 2021. REUTERS/Daniel Becerril 

A soldier stands guard at an accident site where an helicopter crashed into a sidewalk in Apodaca, on the outskirts of Monterrey, Mexico April 23, 2021. REUTERS/Daniel Becerril 

A woman reacts near an accident site where an helicopter crashed into a sidewalk in Apodaca, on the outskirts of Monterrey, Mexico April 23, 2021. REUTERS/Daniel Becerril 

U.S. Vice President Mike Pence, with acting U.S. Defense Secretary Christopher Miller, Joint Chiefs of Staff General Mark Milley and other military leaders and officials, greet the transfer case holding the remains of U.S. Army Staff Sgt. Kyle R. McKee, of Painesville, Ohio, who was killed in a helicopter accident in Egypt, during a dignified transfer at Dover Air Force Base, in Dover, Delaware, U.S. November 16, 2020. REUTERS/Jeff Mason TPX IMAGES OF THE DAY 

U.S. Vice President Mike Pence, with acting U.S. Defense Secretary Christopher Miller, Joint Chiefs of Staff General Mark Milley and other military leaders and officials, greet the transfer case holding the remains of U.S. Army Chief Warrant Officer 2 Marwan S. Ghabour of Marlborough, Massachusetts, who was killed in a helicopter accident in Egypt, during a dignified transfer at Dover Air Force Base, in Dover, Delaware, U.S. November 16, 2020. REUTERS/Jeff Mason 

U.S. Vice President Mike Pence walks aboard a U.S. Air Force jet with acting Defense Secretary Christopher Miller, Joint Chiefs of Staff General Mark Milley and other officers and officials, to greet the transfer cases holding the remains of U.S. Army soldiers killed in a helicopter accident in Egypt, during a dignified transfer at Dover Air Force Base, in Dover, Delaware, U.S. November 16, 2020. REUTERS/Jeff Mason 

U.S. Vice President Mike Pence, with acting Defense Secretary Christopher Miller, and Joint Chiefs of Staff General Mark Milley, greets the transfer case holding the remains of U.S. Army Chief Warrant Officer 2 Marwan S. Ghabour of Marlborough, Massachusetts, who was killed in a helicopter accident in Egypt, during a dignified transfer at Dover Air Force Base, in Dover, Delaware, U.S. November 16, 2020. REUTERS/Jeff Mason 

Law enforcement officers investigate the scene of a helicopter crash that killed retired basketball star Kobe Bryant in Calabasas, California, U.S., January 26, 2020. REUTERS/Ringo Chiu 

Los Angeles county firefighters arrive on the scene of a helicopter crash that reportedly killed retired basketball star Kobe Bryant in Calabasas, California, U.S., January 26, 2020. REUTERS/Kyle Grillot 

Debris and wreckage parts lay on the ground after a collision between an aircraft and a helicopter near the Village of Inca in the Spanish island of Mallorca, killing 7 passengers on both aircrafts. August 26, 2019. REUTERS/Enrique Calvo 

Debris and wreckage parts lay on the ground after a collision between an aircraft and a helicopter near the Village of Inca in the Spanish island of Mallorca, killing 7 passengers on both aircrafts. August 26, 2019. REUTERS/Enrique Calvo 

Debris and wreckage parts lay on the ground after a collision between an aircraft and a helicopter near the Village of Inca in the Spanish island of Mallorca, killing 7 passengers on both aircrafts. August 26, 2019. REUTERS/Enrique Calvo 

Debris and wreckage parts lay on the ground after a collision between an aircraft and a helicopter near the Village of Inca in the Spanish island of Mallorca, killing 7 passengers on both aircrafts. August 26, 2019. REUTERS/Enrique Calvo 

Debris and wreckage parts lay on the ground after a collision between an aircraft and a helicopter near the Village of Inca in the Spanish island of Mallorca, killing 7 passengers on both aircrafts. August 26, 2019. REUTERS/Enrique Calvo 

Debris and wreckage parts lay on the ground after a collision between an aircraft and a helicopter near the Village of Inca in the Spanish island of Mallorca, killing 7 passengers on both aircrafts. August 26, 2019. REUTERS/Enrique Calvo 

Debris and wreckage parts lay on the ground after a collision between an aircraft and a helicopter near the Village of Inca in the Spanish island of Mallorca, killing 7 passengers on both aircrafts. August 26, 2019. REUTERS/Enrique Calvo 

Debris and wreckage parts lay on the ground after a collision between an aircraft and a helicopter near the Village of Inca in the Spanish island of Mallorca, killing 7 passengers on both aircrafts. August 26, 2019. REUTERS/Enrique Calvo 

Debris and wreckage parts lay on the ground after a collision between an aircraft and a helicopter near the Village of Inca in the Spanish island of Mallorca, killing 7 passengers on both aircrafts. August 26, 2019. REUTERS/Enrique Calvo 

A police helicopter flies over the Danube river as search operations continue after a boat carrying South Korean tourists capsized in Budapest, Hungary, June 2, 2019. REUTERS/Marko Djurica 

A police helicopter flies over the Danube river as search operations continue after a boat carrying South Korean tourists capsized in Budapest, Hungary, June 2, 2019. REUTERS/Marko Djurica 

An army helicopter flies over the Danube river as search operations continue after a boat carrying South Korean tourists capsized in Budapest, Hungary, June 2, 2019. REUTERS/Bernadett Szabo 

A helicopter hovers over the scene where part of a construction crane collapsed in a deadly accident on Mercer Street in Seattle, Washington, U.S. April 27, 2019. REUTERS/Lindsey Wasson 

A person on a stretcher is transported on a helicopter after a building collapsed in Muzema community, Rio de Janeiro, Brazil April 12, 2019. REUTERS/Ricardo Moraes 

A person on a stretcher is transported on a helicopter after a building collapsed in Muzema community, Rio de Janeiro, Brazil April 12, 2019. REUTERS/Ricardo Moraes 

A person on a stretcher is carried to a helicopter after a building collapsed in Muzema community, Rio de Janeiro, Brazil April 12, 2019. REUTERS/Ricardo Moraes 

A person on a stretcher is carried to a helicopter after a building collapsed in Muzema community, Rio de Janeiro, Brazil April 12, 2019. REUTERS/Ricardo Moraes 

A person on a stretcher is carried to a helicopter after a building collapsed in Muzema community, Rio de Janeiro, Brazil April 12, 2019. REUTERS/Ricardo Moraes 

A person on a stretcher is carried to a helicopter after a building collapsed in Muzema community, Rio de Janeiro, Brazil April 12, 2019. REUTERS/Ricardo Moraes 

A man on a stretcher is carried to a helicopter after a building collapsed in Muzema community, Rio de Janeiro, Brazil April 12, 2019. REUTERS/Ricardo Moraes TPX IMAGES OF THE DAY 

An aerial view shows a victim carried to a helicopter after two buildings collapsed in Muzema community, Rio de Janeiro, Brazil April 12, 2019. REUTERS/Sergio Moraes 

A person on a stretcher is carried to a helicopter by rescue workers after a building collapsed in Muzema community, Rio de Janeiro, Brazil April 12, 2019. REUTERS/Ricardo Moraes 

A man on a stretcher is carried to a helicopter after a building collapsed in Muzema community, Rio de Janeiro, Brazil April 12, 2019. REUTERS/Ricardo Moraes 

A man on a stretcher is carried to a helicopter after a building collapsed in Muzema community, Rio de Janeiro, Brazil April 12, 2019. REUTERS/Ricardo Moraes 

Rescue workers and firefighters celebrate carrying a man on a stretcher to a helicopter after a building collapsed in Muzema community, Rio de Janeiro, Brazil April 12, 2019. REUTERS/Ricardo Moraes 

A man on a stretcher is transported in a helicopter after a building collapsed in Muzema community, Rio de Janeiro, Brazil April 12, 2019. REUTERS/Ricardo Moraes 

Rescue workers and firefighters celebrate carrying a man on a stretcher to a helicopter after a building collapsed in Muzema community, Rio de Janeiro, Brazil April 12, 2019. REUTERS/Ricardo Moraes 

Rescue workers carry a man on a stretcher to a helicopter after a building collapsed in Muzema community, Rio de Janeiro, Brazil April 12, 2019. REUTERS/Ricardo Moraes 

Rescue workers carry a man on a stretcher to a helicopter after a building collapsed in Muzema community, Rio de Janeiro, Brazil April 12, 2019. REUTERS/Ricardo Moraes 

A man on a stretcher is carried to a helicopter after a building collapsed in Muzema community, Rio de Janeiro, Brazil April 12, 2019. REUTERS/Ricardo Moraes 

A man on a stretcher is carried to a helicopter after a building collapsed in Muzema community, Rio de Janeiro, Brazil April 12, 2019. REUTERS/Ricardo Moraes 

A man on a stretcher is carried to a helicopter after a building collapsed in Muzema community, Rio de Janeiro, Brazil April 12, 2019. REUTERS/Ricardo Moraes 

The wreckage of a small helicopter that crashed into an industrial hall is seen on the crash site in Plzen, Czech Republic, September 5, 2018. REUTERS/David W Cerny 

The wreckage of a small helicopter that crashed into an industrial hall is seen on the crash site in Plzen, Czech Republic, September 5, 2018. REUTERS/David W Cerny 

A damaged roof is seen on the site where a small helicopter crashed into an industrial hall in Plzen, Czech Republic, September 5, 2018. REUTERS/David W Cerny