Employees of Ore. company among 7 killed in Peru helicopter crash

LIMA, Peru (AP) — Investigators picked through the wreckage Tuesday of a heavily loaded U.S.-owned cargo helicopter that crashed in the Peruvian jungle shortly after takeoff, killing its five American and two Peruvian crew members.
The tandem-rotor Chinook BH-234 chopper, owned by Columbia Helicopters, Inc. of the Portland suburb of Aurora, Oregon, crashed Monday near the provincial capital of Pucallpa.
It was under contract for petroleum exploration support, en route to a drilling location in northern Peru, said Todd Peterson, the company's vice president of marketing.
Michael Fahey, the company president, told a news conference in Oregon the aircraft it was carrying a sling load, an external cargo secured by cables. He did not specify the cargo.
Witnesses quoted in local media reports said the chopper lost control and spewed smoke before crashing.
The Pucallpa airport control tower had its last contact with the aircraft at 3:03 p.m., five minutes after takeoff, Peru's civil aviation authority reported, and controllers saw "a big cloud of smoke" four miles northeast of the airport.
A local police commander, Miguel Cardoso, told The Associated Press that three bodies were recovered Monday and three more on Tuesday, from inside the chopper's charred wreckage. He said the three taken to the morgue Monday apparently had jumped from the chopper, as witnesses reported.
"They have different trauma. It appears they jumped out of the helicopter out of desperation, because they have multiple fractures," Cardoso said by phone.
The five dead Americans, all but one U.S.-based, were identified by their employer as Dann Immel, command pilot, of Gig Harbor, Washington, Edwin Cordova, maintenance crew chief, of Melbourne, Florida, Jaime Pickett, mechanic, of Clarksville, Tennessee, Darrel Birkes, senior load manager, an Oregonian living in Peru, and Leon Bradford, a load manager from Santaquin, Utah.
The two Peruvians were co-pilot Igor Castillo and mechanic Luis Ramos, the company said in a 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.
The aircraft's cargo Monday included an external load of rigging, attached on a platform that hung beneath it on cables, "a very standard operation," said Peterson
The helicopter was contracted by Canada-based Talisman Energy Inc. but could also have been subcontracted.
A spokeswoman for Talisman, Veronica Bonifaz, said the chopper was not transporting cargo or personnel for it at the time of the crash.
She said she had no more information.
Columbia Helicopters has been in business for 55 years, principally in the United States, and Peter Lance, the company's executive vice president, said it has been operating in Peru for more than a decade, primarily contracted to companies, like Talisman, engaged in oil and gas exploration.
The Chinook that crashed was one of two helicopters Columbia has in Peru.
Lance, who said he has been with Columbia Helicopters for 33 years, said it has been at least a decade since a company aircraft crashed.
Its last fatal crash occurred in Canada in 1997 when a Boeing BV-234 engaged in heli-logging operations on Vancouver Island crashed, killing both pilots aboard. Canadian authorities blamed an electrical overload.
According to U.S. National Transportation Safety Board records, in October 1996 a Columbia Helicopters Boeing BV-107 lost control during a maintenance check flight and crashed three miles from the Aurora, Oregon airport, killing both pilots and the onboard mechanic. The NTSB listed a maintenance failure as the probable cause.
In addition to petroleum exploration, Columbia Helicopters provides services to industries including logging, construction and fighting wildfires, according to its website.
It bills itself as "the only operator of the commercial models of the CH-47 Chinook and H-46 Sea Knight helicopters."
One thing I did notice was the claim of the max gross weight limit of 51,000 lbs. When I co-piloted N237CH the maximum gross weight in the flight manual was 48,000, a limit imposed by the gearboxes. It has been a few years since I flew one of these (or any helo) so I don't know what process led to the higher gross weight limitation.
The helo in this case, at 47,000 lbs was still below the old max gross weight but I wonder of years of cycling up to 51,000 lbs on load has caused something to fail unexpectedly.
There is always great pressure to carry more tonnage per lift to maximize revenue. 3000 lbs more per lift, 51,000 lbs vs 48,000 lbs when I flew for them adds up over time, both in revenue and in fatigue.  I hope they didn't get ahead of themselves pushing what the Chinook can do. I have a tremendous affection for the Chinook. It is a wonderful flying machine, easier to fly than most small helos really, but like any aircraft you can break it if you abuse it too long. It will be very interesting to find out why this one broke.
Colheli does treat its employees very kindly indeed.  However; I've spent a fair number of hours behind the scenes at the Aurora facility and am thoroughly unimpressed by the competence within the departments I have had experience with.  This place is an Olâ Boys Club. The Department Head I worked with didnât appear to have any professional training or relevant experience.  I got the impression that he had been promoted way over his head. The lower level staff I encountered was congenial, but also unimpressive.  They seemed to know they have a good thing going and enjoy greater compensation than their abilities would probably demand elsewhere.  I noted that I wouldnât be surprised to hear of a Chinook going down over I-5.
@shorin Maybe things have changed for the worse, but I always marveled at how two trained techs working out of a truck in the woods could do a better job of maintaining a BV107 than a whole detachment of petty officers and a maintenance LDO could maintain a CH-46 on a deployment with a hanger and plenty of shop space on the ship. Columbias helos, despite have several times the hours of any Navy helo I flew, always flew better and were more reliable than the stuff the Navy gave us, or the teenage parts changers we were given to maintain them.
Condolences to the families, Columbia has been family, helping many along the way...blessings to all.
What a terrible, sad event... Â I worked for Columbia Helicopters some years ago for a very short time; they impressed me as a first-rate company that valued its employees above all else, and safety was always the first priority. Â Â They took great pride in their equipment and in the professional crews that operated and maintained it.
I know that everyone at CH will take this loss very hard; my condolences go to all of them, as well as to the families of the deceased...
Rest in peace, gentlemen...
 @margay1 >'they impressed me as a first-rate company that valued its employees above all else, and safety was always the first priority.  '
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That was my experience as well.Â
"...Portland suburb of Aurora, Oregon?" Â Aurora has no association with Portland. Â You might as well call Bend a suburb of Portland. Â Someone needs a geography lesson.
Many reports say that this aircraft was in route to a destination and had just received fuel at the near-by airport. Given the enormous amount of power available in the Chinook helicopter, overloading is highly unlikely. Fuel contamination may be more plausible.
@Captain Obvious While there is plenty of engine power for high altitudes, you can still over torque a gear box or overspeed the rotor system. There are a lot of gearboxes in a Chinook. One on each engine, a combining gearbox between the engines and planetary gearbox for each rotor system, with associated shafting between these. Lots of stuff to break if you don't adhere to the published limitations. It is a nice helo to fly but you always have to respect the machinery when you are in the air.
That would be awful.. jumping to your probable death to avoid certain death. I just hope it happened fast and there was little to no suffering.
I am feeling the same way.  Â
R.I.P. Gentlemen.
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Sad to hear. Columbia Helicopters is a top notch operation that goes to great lengths to take care of its employees as well as it's equiptment. As I recall, the last fatality attributed to CHI's equiptment was in the 80's. Sad to hear that 7 families will be forever changed because of this. My thoughts and prayers are with the families, and the friends.Â
Sounds like they may have jumped to escape the smoke that was reported. and if there was smoke before it crashed that should tell us something.
 @special effects Probably a malfunction...although I wouldn't be surprised if it was sabotage seeing that the chopper was engaged in oil and gas exploration.
Sounds like the crash that happened at Mt. Shasta area when there was a fire happening there. Overloading with the firefighters and equipment with too little engine power caused that one.Â
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http://blog.oregonlive.com/oregonianextra/2009/02/the_iron_44_incident_helicopte.html#1
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It's truly just sad when accidents happen.Â
 @washcomom Columbia actuallly helped the FAA with the investigation into that crash. Their turbine shop is recognized as being one of the best in the industry.Â
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BTW... The final FAA report attributed the crash to overloading as well as a known issue with the clutch system in the transmission. It was the liars...er, rather, the lawyers in the tort lawsuit against Erickson that attributed it soley to overloading. (IE-company liability).
That was a Carson S61 that went down on the fire in California.
Yes, many issues on that one
 @MarkKpic I'm sure they will be following this rather closely as well. There was also a false weight load that was put on that helicopter as well as the clutch issue. I was just pointing out that it sounded like the other one. I wonder what equipment these guys had on board.
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Details will be forthcoming. It just sounded eerily familiar.Â
@MarkKpic @washcomom There are two hydraulic circuits and you can fly with one failed, though it is hard work, and land safely. It is an emergency procedure that is practiced.
 @washcomom Just wanted to avoid comparitive suggestions. Two entirely different scenarios.
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Having worked with CHI, I can tell you first hand that saftey in ALL situations was a common thread in aircraft operations and repair. The load masters are given mandates to underload aircraft as part of their responsibilities. I find it exceedingly unlikely that overloading (as in the Sikorski involved in the crash you referenced) was the issue. Also, the aircraft that CHI uses (type 107 & 234) are both dual rotor airframes, and have a different xmsn system than the one employed in the crash you referenced.Â
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If the aircraft lost control, and smoke was seen coming from the aircraft prior to loss of altitude, (complete speculation), my guess would be some type of hydraulic system failure.Â
Sorry to tell you, but so far it is not reported as to what actually caused the incident.
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It is a sad day in Aviation all around.
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Strange. Jumped or were pushed?
Probably jumped.
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@Just Lookin
This is kind of a grim thing, but, I believe most of the time when people just from aircraft, it's because there's a fire onboard. People would rather plunge than burn. One of those thing you really don't want to think about, but I believe the investigators will consider it as evidence in the cause of the crash. Otherwise if the aircraft was maneuvering wildly and somebody wasn't secured, they may have been thrown out.
 @PlayanekesÂ
True, if they lost Rotor control it could have been gyrating all over. Until a full investigation is done, it could have been almost anything. As MarkKpic mentioned, it could have been a hydraulic failure, hose or tube give out.
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