Rotorcraft
Firefighting
Helitanker operators may have thought they would profit after the U.S.

Helitanker operators may have thought they would profit after the U.S. Forest Service (USFS) and Department of the Interior (DOI) terminated contracts for 33 fixed-wing large airtankers due to airworthiness concerns last May, but a quiet fire season and a decrease in profitable call-when-needed deployments mitigated the potential windfall. Although some rotary-wing assets journeyed to Alaska to assist in the riotous fire season there, most helicopter firefighting operators experienced a relatively slow year that resulted in lower revenues.

The USFS stunned the forest firefighting industry when it announced the cancellation of several large airtanker contracts following the April 23, 2004, release of an NTSB report regarding three airtanker accidents, two involving Lockheed C-130A Hercules airtankers and one involving a Consolidated Vultee P4Y Privateer.
All three airplanes suffered in-flight wing separations resulting from fatigue.

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