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23 May 2017 - Coulson Aviation of Canada to convert 737-300's into air tankers

Specialist firefighting company Coulson Aviation of Canada is converting six ex-Southwest 737-300s into air tankers, known as "Fireliners". The aircraft will have a 4,000-gallon capacity.

The air tanker will be a multi-use aircraft with the ability to carry passengers. Coulson said, “With a full retardant load and 4.5 hours of fuel we are so far under max gross weight we are going to leave the full interior and galleys in even when just in airtanker mode.”

Conversion of the first aircraft (N617SW) has started with the first aircraft having been repainted at Spokane in May 2017. The gravity-based tanks of the retardant system will be installed from June 2017 and expect to complete in December 2017 before starting on the next airframe (N608SW). The first conversion will be done by Coulson Aircrane Canada.

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*** Updated 10 Feb 2018 ***

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737-300 Fireliner

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