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Tuesday, June 25, 2013

Tough Times for Canada's ORNGE

Ornge helicopter crash prompts safety concerns

By:Parliament Hill, Published on Sat Jun 22 2013
 

On Runway 06 at Moosonee airport, the Sikorsky S-76A helicopter rocked uneasily on its landing gear, its four rotor blades beating the night air.
In the cockpit of the ORNGE air ambulance was Capt. Don Filliter. At 54, he was a respected veteran of Canada’s helicopter industry. Beside him was First Officer Jacques Dupuy. In the cabin behind them were flight paramedics Dustin Dagenais and Chris Snowball.
The chopper, call sign “Lifeflight 3,” had been dispatched on a midnight trip to Attawapiskat to pick up a patient.
     
The Star spoke at length with pilots with years of experience in air ambulance operations, including several who still work at ORNGE. They spoke on the condition of anonymity because of a concern about retribution.
Pilots and critics say the roots of the May 31 accident can be traced from that patch of burned and devastated forest in northern Ontario back to ORNGE headquarters in Mississauga and the management decisions that began under the controversial reign of Dr. Chris Mazza.
“I think ORNGE is praying that it’s a pilot error accident and then they will accept no blame for this,” one pilot told the Star.
“But the question is whether the pilots were put in a situation where an accident was inevitable.”
A Star investigation has found troubling issues arising from the accident that could impact the safety and service of ORNGE’s helicopter operations, including:
  • Whether ORNGE had the organizational “competence” to assume responsibility for the helicopter operations just over a year ago.

  • An exodus of senior, experienced pilots — more than one-quarter of the workforce — that has strained training and scheduling. In the last 18 months, more than 20 disgruntled rotor-wing pilots with thousands of hours in their logbooks have left, including three who handed in their resignations this week. The turnover could impair the busy flying schedule in the summer “trauma” season.

  •   
    The training given to Filliter. Though an experienced pilot, he had returned to air ambulance flying only in March after several years away.
  • The pairing of Filliter and Dupuy. Veteran pilots tell the Star this “green-on-green” scenario — a pairing of pilots relatively new to their flying positions — is at the root of the accident. Such pairings are banned in commercial aviation because of the inherent risks. In this case, Filliter was returning after a hiatus and Dupuy had less than a year’s experience.

  • Questions about the management of ORNGE’s helicopter operations after the service suspended night flights to remote helipads and flights in bad weather in the wake of the crash. As well, sources say that helicopters are routinely out of service because of maintenance problems or lack of staffing.

  • ORNGE president and chief executive officer Dr. Andrew McCallum says the two pilots involved in the accident were “highly qualified and experienced” and had received the required training.
    And McCallum told the Star that he believes operating the fleet of helicopters in-house “is the most appropriate way for us to deliver the service.
    “I believe that the people here are equipped and able to properly supervise and maintain an aviation service,” McCallum said.
    ----------------------
    The troubled saga at ORNGE has cost taxpayers money. But in the wake of the Sikorsky crash, some question whether that turmoil has now cost lives. They point to the decision by ORNGE to take over the operation of its helicopter fleet, despite repeated warnings that the agency lacked the “competence” to handle the complex demands of such a move.
    It was under Mazza’s tenure as chief executive officer that ORNGE decided to cut short its contract with Canadian Helicopters Ltd., which through a series of competitive bids, had operated Ontario’s rotor-wing air ambulances since 1977 without a fatal accident.
    Instead, ORNGE said it would handle the operation and maintenance of its helicopter fleet and the training of its pilots starting April 1, 2012. The fatal crash came just over a year later. Today, there is growing anger among ORNGE employees who saw this as a preventable accident set in motion by the turmoil of recent years.
    “ORNGE was never set up with the original mandate of operating an aircraft. We are paying for it now. They should never have been involved in aviation,” said one insider.
    “You can back this up since the day they took it over and see how everything is connected to that crash.”
    There were warnings voiced at Queen’s Park that ORNGE lacked the expertise to manage a fleet of sophisticated helicopters.
    “It’s a very, very complex operation. Putting it simply, there’s no learner’s permit for this. It’s very, very difficult to do. We’re very good at it,” Rob Blakely, a vice-president with Canadian Helicopters, told the public accounts committee probing the ORNGE controversy last year.
    It was no idle boast. Canadian Helicopters had been recognized by Sikorsky for its safety record flying the S-76.

    Jacob Blum, who served in several senior roles at ORNGE until his resignation in 2008, said he voiced doubts about the decision to bring the helicopter operations in-house but says he was ignored.
    “What ended up happening was a desire to become an aviation company — what I cheekily call, ‘boys with toys.’ ” Blum, a former ORNGE vice-president, told a Queen’s Park committee probing the agency last year.
    “ORNGE did not have the core competencies to become an aviation company. That was better left to the third-party aviators who do this for a living day in and day out,” Blum said.
    Tom Rothfels, ORNGE’s former chief operating officer, told the committee that operating complex, twin-engine choppers “is not something that you do lightly.”
    “It concerned me greatly that ORNGE was about to undertake this in a very short period of time,” he said.
    ------------------------------------
    Preparing for takeoff that night, ahead lay the runway at the Moosonee airport. Beyond that, blackness. And unlike nights in southern Ontario, where urban life illuminates the night, this was an all-encompassing, inky darkness.
    It was the kind of darkness that has a name — the “black hole” effect where the lack of visual references creates risks for pilots.
    The condition is a bigger concern on landings, when such darkness makes depth perception difficult. But it can also play havoc on takeoff when pilots must cope not only with the lack of visual references but also the sensory illusions caused by the acceleration of the aircraft as it takes to the air.
    It could be so disorienting that Canadian Helicopters gave its air ambulance crews repeated practice in “black hole” arrivals and departures to drive home the risks and the skills needed to safely in such conditions.

    “Unlike southern Ontario, once you leave that runway there are no lights for 80 miles,” one pilot told the Star.
    On the runway, the Sikorsky’s twin engines spooled up and the chopper took to the air.
    “You want keep . . . straight and level until you’ve got a good rate of climb and at least 500 feet above ground in night-time before you do any turning,” one pilot told the Star.
    The helicopter climbed initially and then turned north. But in the turn, it began to descend, crashing into the trees that border the airport.
    While all potential causes officially remain on the table, that announcement has put the focus on the actions of the two pilots at the controls — and decisions by ORNGE management.
    Though spread around the globe, Canadian helicopter pilots are a close-knit community. As word circulated that Filliter had been killed in a crash, the first reaction was disbelief. Then were there questions. That’s because all those who flew with Filliter say he was a consummate pro.
    “He was a safe, competent pilot. Absolutely no one better,” said one pilot.
    In the words of another, he had “good hands and feet,” perhaps the ultimate compliment to pay a helicopter pilot
    Filliter flew helicopters for the Ministry of Natural Resources and flew part-time on the air ambulance fleet. Yet he had been away from the air ambulance business for several years before joining ORNGE in March as a contract pilot.
    It’s the policy of some aviation companies that a captain who had been away for an extended time would have been paired with a training captain for a month or longer to ensure they are up to speed and proficient to act as a pilot-in-command.
    Now some question whether Filliter had been pressed back into operations without proper training and supervision because of the staff turnover at ORNGE.
    “I just can’t get my head wrapped around how this happened,” said one veteran pilot, who once flew with Filliter.
    “It’s got to be something to do with the training not being done well and Don being left without the tools required to do this job,” the pilot told the Star.
    “We’re getting away from those days when we call it pilot error. We’re calling it system failures and I think this is an example of system failure, that inexperienced people have been put in charge of a complex, expensive and potentially risky business.”
    Canadian Helicopters had managers in charge of individual air bases across the province. Such a manager would never have paired Filliter and Dupuy together for a challenging night flight, one source said. But when ORNGE took over, they got rid of the base managers and moved to centralized scheduling run from its Mississauga headquarters.
    “Yes, they both had lots of experience flying but not in this type of environment,” the source said.
    ----------------
    As a former flight surgeon, chief coroner of Ontario and a pilot and aircraft owner himself, McCallum well knows the desire for answers after tragic deaths.
    His first counsel is patience, to avoid quick judgments.
    “Everybody has a thought about what happened and why it happened and conclusions have been drawn but the fact is we don’t know,” he told the Star during an interview at ORNGE’s Mississauga headquarters.
    He says that Filliter had gone through all “recurrent training and checks” after joining ORNGE. Dupuy joined last August and McCallum says he was experienced as well with thousands of hours in his logbook.
    “So neither of these guys were anything but highly qualified and experienced,” McCallum said, dismissing speculation of a green-on-green scenario.
    “I think describing these two individuals as green would be unfair to them entirely,” he said.
    He concedes that the takeover of helicopter operations from Canadian Helicopters has been challenging.
    “Certainly there have been pilots who have left. We have also recruited more pilots than have left,” McCallum said.
    “I think it would only be fair to say that the transition from CHL to us wasn’t entirely happy from the perspective of a number of veteran pilots,” he said.
    Despite the turnover, McCallum said he’s satisfied that the new hires are “appropriately qualified. We bring them and train them properly.”
    He said he expects the safety board to look at Filliter’s training, the pairing of Filliter and Dupuy, the turnover in the pilot ranks and determine whether any of it was a factor in the accident.
    “It’s frustrating because it takes a long time and people want answers. My folks desperately want to know,” he said.

     

    Monday, June 24, 2013

    Good Times with Good Friends...

    http://www.youtube.com/watch?v=LuJVLoF3UFs&feature=endscreen&NR=1

    Thanks to Colleton County Fire for the memories... This video includes several aircraft previously operated by Omniflight Helicopters prior to their acquisition by Air Methods Corp., including the former Meducare Air ship, 171M(edical) U(niversity of South Carolina)), 117 L(ife) S(tar) Savannah,  and an old-formerVanderbilt Life Flight ship, 117 VU. These BKs are going away now, to bone-yards and overseas, but they served well and long, and transported thousands and thousands of persons to definitive care. And never hurt me.

    Friday, June 21, 2013

    NTSB Preliminary Report, N114AE Bell 206 Manchester, Kentucky June 6th, 2013

    NTSB Identification: ERA13FA273


    14 CFR Part 91: General Aviation

    Accident occurred Thursday, June 06, 2013 in Manchester, KY

    Aircraft: BELL HELICOPTER TEXTRON 206L-1, registration: N114AE

    Injuries: 3 Fatal.

    This is preliminary information, subject to change, and may contain errors. Any errors in this report will be corrected when the final report has been completed. NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

    On June 6, 2013, about 2315 eastern daylight time, a Bell 206 L-1, N114AE, was destroyed when it impacted an elementary school parking lot while on approach for landing near Manchester, Kentucky. The airline transport pilot and two medical personnel were fatally injured. The helicopter was registered to and operated by Air-Evac EMS, Inc., as Evac 109, and operated under the provisions of Title 14 Code of Federal Regulations Part 91 as a repositioning flight. Night visual meteorological conditions prevailed, and a company visual flight rules flight plan was filed. The flight originated from the St. Joseph-London Heliport (5KY9), London, Kentucky about 2259.

    The helicopter was on approach to the operator’s private helipad when the accident occurred. According to flight tracking software provided by the operator, the helicopter approached the base from the west, turned southeast, flew overhead the intended landing site about 1 mile, turned north, then west, then back southeast prior to the end of the recorded data. Recordings provided by the operator's Operational Control Center (OCC), located in O'Fallon, Missouri, revealed that the pilot reported arriving at the base at 2312:24. That transmission was acknowledged by the OCC at 2312:30. At 2315:02, an unidentified male voice was recorded. No other transmissions from the accident flight were captured.

    Several eyewitnesses reported that the weather was clear, and stated that the helicopter was "spinning" prior to impact. One of those witnesses reported seeing the helicopter in an approximate 40-degree nose-up attitude, and shortly after no engine sound was heard. Other witnesses, who reported "dense fog" in the area at the time of the accident, stated that they only saw the helicopter just before the impact and subsequent explosion.

    The helicopter came to rest inverted on a 268 degree heading, about 750 feet from the intended landing area. According to security camera recordings the helicopter erupted into a fireball immediately on impact.

    The helicopter and engine were retained for further examination.

    But For the Grace of God...

    TALIHINA, Oklahoma - A medical helicopter that crashed shortly after taking off from the Choctaw Nation Health Care Center in Talihina on June 11, 2013 hit a light pole before impacting the ground, according to a preliminary report released by the National Transportation Safety Board.
    The patient on board died in the crash and a flight nurse was seriously injured.

    6/11/2013: Related Story: 1 Dead, 3 Injured In Medical Helicopter Crash In Talihina

    The EagleMed helicopter was taking off from the Choctaw Indian Hospital in Talihina, en route to St. Francis Hospital in Tulsa, when the pilot lost control and crashed.

    It hit the ground about 230 feet from its takeoff position.

    The patient on board, 49-year-old Michael Wilson, of Bethel, was killed. A flight nurse who was in critical condition, is improving, but is still in the hospital.

    Read the NTSB's Preliminary Report.

    NTSB investigators came out with a preliminary report on the crash. It shows, when the helicopter landed at the hospital, "another helicopter had just landed and was occupying the single space helipad surface."

    So, the pilot landed on an adjacent asphalt road.

    After picking up the patient, the report shows the pilot said he "began a normal takeoff from a hover," and intended to follow the center of the road in a westbound direction.

    When the helicopter was 175 feet west of the take off location, the left side of the rotor blade "impacted a 41-foot-tall metal light pole," which was located on the left side of the road.

    A hospital spokesperson says there have not been any prior near misses or complaints about the pole.

    A commission that evaluates medical transport services has placed the accreditation of EagleMed on hold after the crash, which is routine. The group won't make a decision on EagleMed's accreditation until reviewing the final NTSB report.

    EagleMed is based in Wichita, Kansas, but operates 24 aircraft in eight states.

    Thursday, June 20, 2013

    Another One Bites the Dust...

    LAKE CITY, AR  – The Air-Evac rescue team in Lake City walked away unharmed after a hard landing late Wednesday night.
    According to Air-Evac, the rescue helicopter was on final approach to their base when they suffered an engine malfunction.
    The pilot was able to set the helicopter down close to the heli-pad in what they called a hard landing.
    No one was injured in the landing, but the helicopter did receive minor damage.
    The crew does have a spare helicopter on scene, so no services will be disrupted.
    Air-Evac says the incident is being looked into, and the damaged helicopter will be sent off for repairs.

    Note: Details of this event are unconfirmed. Hard landing is an aviation euphemism for, "we crashed, tore up the aircraft, and don't want to make a big deal about it, or have YOU make a big deal about it."  When the skids are spread apart and the tail boom is broken off,  it's a crash. The aircraft will be covered with tarps, loaded onto a flatbed and whisked into a hangar.


    An American Success Story; Jim Freeman and Helicopter Specialties



     

    I had the good fortune to meet Jim Freeman several years ago in Birmingham, Alabama. He and I shared the responsibility to ferry a Bell 230 coming off of a contract up to his facility in Janesville, Wisconson. He was working for the aircraft's owner, I was picked as I had flown her on an EMS contract in Columbia South Carolina.

    Old folks may remember that once upon a time, a wealthy fellow with a famous last name, Dan Parker (of the Parker Pen Company ) fell in love with helicopters and started a one-ship company in Janesville, and as he was willing to have his helicopter make money any way possible, he named the company "Omniflight."  (They began with the same type of aircraft in the picture, a Bell -47)



    For years, Omniflight lived up to it's name, transporting executives and other VIPs, serving New York city with a shuttle, flying tours of the Wisconson Dells, and eventually testing the waters offshore with the acquisition of Pumpkin Helicopters, an oil and gas outfit. Omniflight eventually settled into helicopter EMS, and toward that end purchased Silver Star Helicopters based in Addison, Texas, near Dallas. After Dan Parker died, his widow elected to move the company from Janesville to Addison. This put Jimmy in a pickle, as he was from Janesville and didn't want to leave. He spent some time continuing with Omniflight as a flying mechanic, able to ferry backup aircraft all over the country, and fix them too. One day, he computed the hours worked versus the pay earned and realized that there had to be a better way. He began, as many aircraft mechanics do, working out of the back of his pickup truck. And made a living.

    Then he got a call from an old friend. A customer needed a helicopter "completed," which entails the medical interior, the avionics suite, and the paint job. The established completion centers were booked up, and this friend knew of Jim's work ethic and capabilities. Jim contacted all the old Omniflight "wrenches" living in the area and had a Sunday night meeting at his house. The end result was a rented hangar at the airport, and a beautifully completed aircraft. From those humble beginnings, he and his team have created one of the finest helicopter maintenance, repair, overhaul, and completion centers in the world. His business has been profiled in magazines, and on TV, and they have all the work they can handle; for one reason - they do a good job.




    Jim and I flew the 230 from Birmingham to Janesville and got to know each other. He is a good pilot, and could have gone down that path, but for him the real pleasure is making helicopters look and perform like new. We stopped by the OSF flight program in Peoria on the way north to let them have a look at our machine as a parts spare, and finished the trip using the radar, the autopilot, and the air conditioner to good effect. I found it ironic that the machine had never worked so well as she did during the ride to get rid of her.



    

    Many people living in America today think that our best days are behind us. When I get discouraged about the state of things, I think about Jim Freeman, Helicopter Specialties, and what one guy with a commitment to excellence can achieve...
    

    Sunday, June 16, 2013

    Get-Home-itis Close to Home...

    NTSB cites pilot determination to return to home base in connection with two fatal EMS helicopter crashes in 2010.

    By Linda Werfelman

    The U.S. National Transportation Safety Board (NTSB) has cited the pilot's decision to fly into instrument meteorological conditions (IMC) as the probable cause of two fatal crashes in late 2009 and early 2010 of emergency medical services (EMS) helicopters.

    Each crash killed all three people aboard — the pilot and two aeromedical personnel — and each involved a Eurocopter AS350. The NTSB issued final reports on both accidents in mid-January.

    The first of the two crashes occurred at 2331 local time on Sept. 25, 2009, 1.92 nm (3.6 km) southwest of Georgetown County Airport in Georgetown, South Carolina.
    The multi-leg operation began about 2023 when the helicopter left Conway–Horry County Airport (HYW) in Conway to pick up a patient from Georgetown Memorial Hospital for transfer to the Medical University of South Carolina in Charleston (MUSC). After the transfer was completed, the helicopter was flown to Charleston Air Force Base/International Airport for refueling. At 2302, the pilot told MUSC flight control that he was leaving Charleston for HYW with a flight nurse and flight paramedic aboard; at 2316, he said he was flying at 110 kt and 1,000 ft above mean sea level (MSL) and that he expected to arrive at HYW in 29 minutes.

    A routine flight update was due 15 minutes later, but there were no further communications from the helicopter, and MUSC flight control activated the emergency action plan. Sheriff’s deputies located the wreckage about 0206 on Sept. 26.

    The 45-year-old commercial pilot had reported two months earlier that he had 4,600 flight hours, including 3,736 hours as a naval aviator in the U.S. Marine Corps. He had ratings for single- and multi-engine airplane, rotorcraft helicopter, instrument airplane and instrument helicopter, and a second-class medical certificate.

    Although he had experience in IMC, he was no longer instrument current and was not required to be, because the operator — Omniflight Helicopters, doing business as Carolina Life Care — conducted its AS350 B2 operations under visual flight rules. In his last U.S. Federal Aviation Regulations Part 135 competency/proficiency check, conducted in December 2008, he “satisfactorily demonstrated inadvertent IMC recovery,” the NTSB said in its final report on the accident.

    The pilot had worked the day shift, from 0800 to 2000, from Sept. 22–24 and switched to the night shift, from 2000 to 0800 on the day of the accident.

    The helicopter was manufactured in 2000. It had 2,967 total hours of operation on Sept. 17, when its last 500-hour inspection was completed. Although it was not approved by the U.S. Federal Aviation Administration (FAA) for operations in IMC, it was equipped with instruments to operate in case of inadvertent entry into IMC. However, it did not have on-board weather radar, a night vision imaging system, an autopilot or a helicopter terrain awareness and warning system.

    Omniflight’s operations manual said that the pilot-in-command was responsible for obtaining weather information before any series of flights, and Omniflight pilots told accident investigators that they routinely obtained the information from a base computer at the beginning of each shift and advised the Omniflight Operations Center (OCC) of conditions during their flights. They also called the OCC before beginning a series of flights.

    Accident investigators did not recover the weather data that the pilot obtained before the accident flight, but actual weather conditions reported by the pilot, as well as information associated with the operations center’s approval of the flights, indicated that visual meteorological conditions had prevailed when the operation began and during the early portion of the flight.

    When the operations coordinator spoke with an MUSC communications specialist at 2242, the coordinator said that if the pilot called OCC before takeoff from Charleston, they could review the weather for the return flight. The pilot did not call, and OCC did not contact him, the report said.

    The Omniflight base manager at Savannah, Georgia, who also was operating a helicopter in South Carolina the night of the accident, said that, although the weather was deteriorating, the forecast called for it to remain “well above minimums” for his return to MUSC. He said he spoke with the accident pilot, who warned him about “bad thunderstorms” near Georgetown and expressed concern that he might not be able to return that night to his base at HYW.

    Witnesses who saw the helicopter shortly before the accident said it was flying northbound toward the Georgetown airport about 1,000 ft above ground level (AGL) in moderate to heavy rain, “with its searchlight turning on and off,” the report said.

    “Although the pilot encountered an area of deteriorating weather and IMC, this did not have to occur, as the pilot did not have to enter the weather and could have returned to Charleston Air Force Base/International Airport or landed at an alternate location,” the report said. “The pilot, however, chose to enter the area of weather, despite the availability of safer options.

    “Based on the pilot’s statement to the Savannah-based pilot regarding bad thunderstorms in the area, he was aware of the weather and still chose to fly into it. In addition, the pilot’s inability to maintain a steady state cruise altitude during the flight and the declining altitude throughout the flight likely reflected his attempt to stay below the cloud level. These cues should have indicated to the pilot that it was not safe to continue flight into IMC. This decision-making error played an important causal role in the accident.”

    In its final report on the accident, the NTSB noted two safety recommendations it had issued after previous crashes.

    One, issued in February 2006, called on the FAA to require EMS operators to use “formalized dispatch and flight-following procedures that include up-to-date weather information and assistance in flight risk-assessment decisions.” The FAA responded with a pending notice of proposed rulemaking.

    The second safety recommendation, issued in September 2009, asked the FAA to require that EMS helicopters be equipped with autopilots and that pilots be trained to use them when flying without a copilot. The FAA said it would study the “feasibility and safety consequences” of requiring either an autopilot or a second pilot.



    ‘Beat the Storm’



    The second crash occurred at the end of the pilot’s 12-hour overnight shift at 0600 local time March 25, 2010, near Brownsville, Tennessee. He had dropped off a patient at a hospital helipad in Jackson at 0534, and called the flight-following center MedCom and the company pilot whose shift began at 0530 — both times to ask about weather conditions, including a nearby storm system.

    He told the other pilot that he was waiting on the helipad for the flight nurses to return and that he “wanted to get the helicopter out” and return to Haywood County EMS Heliport in Brownsville. The other pilot said that he checked a computer-based radar weather depiction and saw a front about 65 mi (105 km) southwest and approaching the heliport at 25 mph 40 kph).

    The accident pilot told the other pilot that he believed he had “about 18 minutes to beat the storm and return to home base, so he was going to leave the flight nurses behind and bring the helicopter back,” the report said.

    The helicopter took off from the helipad about 0551. Both flight nurses had arrived in time to board. Satellite-recorded data showed that the helicopter was flown about 1,000 ft MSL for most of the flight segment; the last recorded altitude was 752 ft MSL (about 350 ft AGL), with the helicopter flying at 105 mph (91 kt).

    Arrival in 30 Seconds

    After their conversation, the other pilot again checked weather radar and saw that the line of thunderstorms was about 18 mi (29 km) from the helicopter’s base. When he went outside, he could not see the helicopter and telephoned one of the flight nurses, who told him that they “had the weather beat” and would arrive at the heliport in about 30 seconds.

    “At the time of the conversation, the oncoming [other] pilot observed that it was raining lightly but that the wind had picked up, perhaps to about 20 kt,” the report said. “Then, just after hanging up, he heard an ‘immediate’ loud clap of thunder and saw lightning that made him jump. He looked out, saw no helicopter and tried to call the nurse without success. He then called MedCom and ran up the hill to contact the ambulance service located there.”



    Rescuers found the helicopter in a field about 2.5 mi (4.0 km) east of the helicopter’s base.

    The pilot, 58, had a commercial pilot certificate with ratings for single-engine and multi-engine land airplanes, rotorcraft helicopter, instrument airplane and instrument helicopter. He had about 4,000 flight hours in March 2009, when he received his second-class medical certificate; records indicated he had about 2,615 hours of helicopter flight time.

    He completed his most recent airman ­competency/proficiency check in August 2009 and his most recent instrument competency check in February 2010.

    The day before the accident, the pilot had flown 0.4 hour at night. The previous day, he had flown 0.2 hour during the day, 0.2 hour at night without night vision goggles (NVGs) and 0.5 hour at night with NVGs. He had been off duty the previous day.

    The helicopter was an AS350 B3, manufactured in 2008 and delivered to the operator — Memphis Medical Center Air Ambulance Service, doing business as Hospital Wing — in May 2009; it had accumulated 248 hours total time, and the most recent 200-hour and annual inspections were performed March 1, 2010. It was equipped with NVGs and NVG-compatible lighting, an autopilot and an enhanced ground proximity warning system.

    The accident investigation revealed no sign of pre-impact problems with the helicopter.

    Line of Storms

    Weather radar showed that, about the time of the accident, a line of thunderstorms was moving through an area that included the accident site. Radar showed IMC, heavy rain, lightning and wind gusts of up to 20 kt; the area immediately in front of the system would have been prone to extreme low-level wind shear, the report said.

    Witnesses reported lightning and thunder near the accident site, along with high winds and bands of heavy rain. Information from two organizations that gathered lightning-strike data showed a number of lightning strikes from 0545 and 0615 but none within 90 seconds of the accident.

    At the time of the accident, Hospital Wing used a formal risk assessment program that called for an evaluation, at the beginning of a pilot’s duty time, of a number of risks, including low pilot experience, inoperative aircraft equipment, poor weather and lack of night lighting. Numerical values were assigned in each area, and higher numbers indicated higher risks; a score of more than 14 meant the flight could not be conducted.

    The evaluation allowed for subtraction of points in acknowledgment of high levels of pilot experience, use of NVGs and other factors.

    The accident pilot calculated a total risk of “3”; two points had been subtracted for pilot experience and NVG use.

    The NTSB said that the encounter with deteriorating weather conditions “did not have to occur, as the pilot could have chosen to stay at the hospital helipad. … The pilot made a risky decision to attempt to outrun the storm in night conditions. … This decision-making error played an important causal role in the accident.”

    The report added that although the accident occurred near the end of a 12-hour overnight duty shift, accident investigators lacked complete information about the pilot’s sleep and rest activities and could not determine whether fatigue contributed to his “faulty decision to attempt to outrun the storm.” 

    This article is based on NTSB accident reports ERA09FA537 and ERA10MA188 and accompanying documents.