The risks of helicopter operations

The following is from an article in the Redding, California Record Searchlight

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Timothy Ingalsbee says he owes his life to a firefighting helicopter.

In 1990, when he was a scout perched on a house-sized boulder overlooking a blaze in Washington’s North Cascades National Park, a shift in wind pushed wildfire uphill to him. Encircled in flames, he radioed for a helicopter to drop 2,000 gallons of water directly on top of him.

The deluge from a massive twin-rotor helicopter knocked down the fire and saved his life, he said. Still, given the deadly risks to those aboard, he wonders whether helicopters should be used to fight wildfires in the backcountry.

Over the past four years, four helicopters have crashed while fighting wildfires in the north state. Three of the crashes were fatal, killing 12 people in all. That includes the nine deaths in last summer’s Iron 44 crash near Weaverville, among the worst aviation crashes in terms of lives lost in the U.S. Forest Service’s history.

Another firefighter also died last week when he fell 200 feet from a helicopter during a routine rapelling exercise as part of the fight of the Backbone Fire in the Trinity Alps Wilderness.

Now the executive director of Firefighters United for Safety, Ethics and Ecology (FUSEE) based in Eugene, Ore., Ingalsbee said there is no tool as versatile as a helicopter in fighting fire. But flying them over blazes burning deep in the woods increases the chances of their crashing.

“Using helicopters in this steep, mountainous terrain is fraught with peril,” Ingalsbee said.

Useful tool

As people movers, cargo carriers and flying fire hydrants, helicopters have become a major part of modern firefights.

“They are one of our biggest assets,” said Robert “Buck” Silva, fire management officer for the Modoc National Forest.

Shuttled into fires by helicopters, “helitak” crews may slide down ropes to reach the ground.

It was during a rappelling training session that Tom “T.J.” Marovich, 20, of Hayward fell and died last week at the Backbone Fire’s temporary helicopter base in Willow Creek.

The pain of his friend’s death still stinging, Cody Sandberg, assistant chief at the Adin Fire Protection District in Lassen County, said helicopters provide firefighters a huge advantage.

“There is going to be a risk in the air or on the ground,” said Sandberg, who has also worked with the California Department of Forestry and Fire Protection in fighting wildfire.

Often spending much of the fire season in the small town, Marovich had been a volunteer for Adin Fire for four years. Sandberg said Marovich accepted the risk of riding in and rappelling from a helicopter along with the other dangers of the job.

Compared to hiking or driving on winding forest roads, flying in a helicopter can bring a firefighter to a blaze in a matter of minutes rather than hours.

“They are, unfortunately, worth the risk,” Sandberg said.

When to fight fire

Ingalsbee and other critics of the Forest Service’s wildfire management said they don’t doubt helicopters’ usefulness.

“When you need to put a fire out, a helicopter is a great tool,” said Rich Fairbanks, a former Forest Service firefighter and a current fire specialist with The Wilderness Society, a national conservation group.

But examining the dangers of firefighting helicopters leads to the underlying questions of when and where wildfires should be fought, Fairbanks and Ingalsbee said.

Three of the four crashes over the past four years involved helicopters flying over fires in federally designated wilderness.

Fairbanks said fires in wilderness could be allowed to burn to rocky ridges and rivers, where they’ll go out naturally. That way, expensive and risky helicopters wouldn’t have to be used.

“Is spending this money and killing some young folks a good idea?” he said.

But such a “let it burn” attitude doesn’t take into account the health risks brought by the smoke from wildfires, the chief reason cited by the Forest Service officials as they aggressively fought the 6,324-acre Backbone Fire.

Forest Service officials at the Shasta-Trinity National Forest, the state’s regional office and the Washington, D.C., headquarters declined to discuss the use of helicopters on wildfire last week, saying they wanted to wait until after Marovich’s funeral. The funeral is set for Thursday in Hayward.

On the Klamath National Forest, Riva Duncan, deputy forest fire chief in charge of aviation, said the dangers of using helicopters are weighed before each mission. She said fire officials fill out a risk assessment form when deciding whether to send up the copters. A helicopter pilot, being the most familiar with their ship and skills, also can veto any mission.

Duncan said the officials aim to make sure that each flight is safe, effective and efficient.

“If we can’t meet those criteria,” she said, “we need to think about doing something else.”

NTSB: Sikorsky S-61 hit water tank

The National Transportation Safety Board said Friday the Sikoirsky S-61 that crashed on the Backbone fire on the Klamath National Forest in northern California on July 17 hit a dip tank, or Heliwell, while it was refilling. The NTSB report said witnesses saw the helicopter hit the tank.

From the Redding Searchlight:

During liftoff, the helicopter experienced a “droop condition,” the NTSB report says, and witnesses saw the copter hit the tank.

The Sikorsky banked until its main rotor blades struck the ground, the report says.

The left, main landing gear was sheared off and the helicopter rolled over onto its side. The hard landing damaged the main rotor blades, the fuselage and tail rotor, the report says. A small amount of fuel spilled, but there was no fire.

Both pilots were able to walk away from the accident, but one suffered serious injuries.

The final NTSB report on the accident is still pending.

Another helicopter-related accident occurred on the same fire on July 21 when Thomas Marovich, 20, of Hayward California incurred fatal injuries when falling 200 feet while performing routine rappel proficiency skill training at the Backbone Helibase.

Custer, SD helitack, 50 year open house

On Saturday we attended the open house commemorating 50 years of service by the Custer, South Dakota helitack crew.

The hangar at Custer

There were quite a few people there. More than they expected.

Cooking brats and hot dogs

They had to make an emergency run to pick up an additional two dozen brats and buns.

Boeing Vertol 107

The Type 1 helicopter got a lot of attention.

Boeing Vertol 107


Boeing Vertol 107

The local Custer helicopter arrived late to the party after being assigned to a local fire.

Custer helicopter

There were people at the open house that worked on the helitack crew decades ago. For example, Dave Sisk was on the crew around 1972 and drove over from Cody, Wyoming.

Beginning in approximately 2000 the helitack crew became interagency, supported not only by the U. S. Forest Service, but also by the National Park Service and possibly other agencies as well.

Aircrane to be at Oshkosh air show

Erickson Aircrane has a license from Sikorsky to build new S-64F Aircrane helicopters from scratch. They also have acquired some from military surplus, adding a tank that can hold 2,650 gallons of water or retardant.

HERE is a link to an interesting article written by the Oshkosh air show that provides more details about this ugly (some say) but beautifully effective  firefighting machine.

Black Hills helitack crew open house–50 years of service

From the Rapid City Journal:

The golden anniversary of deploying helicopters to Black Hills forest fires will be observed Saturday, July 25.

The public open house will be at the U.S. Forest Service hangar at the Custer Airport, 3 miles south of Custer on Highway 385. Signs will be posted on the route, including Aviation Way to the airport.

Events will be from 4:30 p.m. to 8 p.m., including a 6 p.m. barbecue, photo slide show and stories, possibly from members of the original crew and the days of “heli-jumping” without parachutes.

Order forms for 50th anniversary T-shirts and historic photographs also will be available. Copies of the “50 Years of Service” helitack photo book can be bought at http://bit.ly/17UvKv.

The Black Hills Interagency Helitack Program was established in 1959. The program has operated continuously since, stationed in either Hill City or Custer.

The current eight-man crew serves a seasonal contract from mid-June to mid-September throughout the Black Hills National Forest, as well as regional property managed by National Park Service, Bureau of Land Management, Bureau of Indian Affairs and Crook County, Wyo.

Followup on fatal rapelling accident

The U. S. Forest Service has issued a Safety Alert as a result of the accident on July 21 in which Thomas Marovich fell 200 feet to his death during rapelling training.

No. FS 09-01

July 21, 2009

Subject: Rappel Operations Equipment and Procedural Check

Area of Concern: Rappel Operations

Distribution: Rappel Bases

Discussion: This morning at approximately 1015 PDT a rappel accident occurred resulting in a fatal fall of a Forest Service rappeller. The facts we have on hand are that the helicopter and crew were assigned to the Backbone incident on the Six Rivers, NF west of Redding, CA. The crew was conducting a routine rappel proficiency mission involving in a Bell 212 HP.

A Chief’s level accident investigation is being conducted. The Forest Service is a party to the National Transportation Safety Board investigation.

Recommendation: We are advising all rappel units to review the Interagency Helicopter Rappel Guide (IHRG) Chapter 3, Rappel Equipment to assure that all rappel equipment meets the current standard. Also review Lesson Plan 7, Helicopter Mock-up on pages D-12 through D-16 of the IHRG.

Your review of equipment and procedures must be accomplished prior to the next operating period. The National Office is not calling for a stand-down of the rappel program at this time, until we can determine the specifics of what occurred and corrective actions to be taken. However, Region 5 has suspended all rappel activities until further notice.

The Safety Alert was signed by William C. Waterbury (AD Risk Management and Human Performance) and Ron Hanks (Chief, Aviation Risk Management and Training Systems).

The International Association of Wildland Fire reports that there have been 10 other wildland firefighter fatalities in the United States this year:

  • John C. Meyer, firefighter/mechanic, 01/03/09
  • John W. Adams, firefighter, Oklahoma,02/02/2009
  • William Roger Vorwark, firefighter, Missouri, 03/14/2009
  • Roger Hershner, pilot, Kansas, 03/08/2009
  • Gregory Carroll Cooke, firefighter, North Carolina, 03/21/2009
  • Heath Van Handel, pilot, Wisconsin, 04/08/2009
  • Dennis M. Simmons, firefighter, Kansas, 04/21/2009
  • Tom Risk, pilot, 04/25/09
  • Brian Buss, airtanker crew member, 04/25/09
  • Mike Flynn, airtanker crew member, 04/25/09