News & Comment

Wire Strike on Unfamiliar Approach Direction to a Familiar Site

Posted by on 7:56 pm in Accidents & Incidents, Helicopters, Human Factors / Performance, Safety Management

Wire Strike on Unfamiliar Approach Direction to a Familiar Site (Air-Glaciers Airbus Helicopters AS350B3 HB-ZCZ) On 11 March 2019 Airbus Helicopters AS350B3 HB-ZCZ of Air-Glaciers struck a with a power line near the Tseuzier dam in Crans-Montana near Sion, Switzerland.  The helicopter survived the wire strike with only damage to the leading edge of one main rotor blade. The Serious Incident Flight The Swiss Safety Investigation Board (SUST) explain in their safety investigation report, issued in French on 21 January 2021, that the helicopter...

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Prior Engine Mount Damage Lead to Fatal Aerial Saw Crash

Posted by on 7:08 pm in Accidents & Incidents, Helicopters, Maintenance / Continuing Airworthiness / CAMOs, Safety Management, Special Mission Aircraft

Prior Engine Mount Damage Lead to Fatal Aerial Saw Crash (Rotor Blade LLC, Hughes / MD 369D / 500D N89ZC) On 5 March 2019 Hughes (later MD) 369D / 500D N89ZC, operated by Rotor Blade LLC,  crashed near Talking Rock, Georgia, killing the pilot.  This occurred during a Part 133 external load flight using a 10-bladed aerial saw to trim trees alongside power lines. The Accident and NTSB Safety Investigation The US National Transportation Safety Board (NTSB) explain in their safety investigation report that three passes were planned (upper,...

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Unanticipated Yaw: Loss of Control During Landing Site Survey

Posted by on 3:42 pm in Accidents & Incidents, Helicopters, Human Factors / Performance

Unanticipated Yaw: Loss of Control During Landing Site Survey (Airbus EC130T2, N130TG) On 3 August 2018 private Airbus Helicopters EC130T2 N130TG lost control while manoeuvring to survey a potential landing site near the Dismal River Golf Club at Mullen, Nebraska. The pilot was uninjured, but the passenger sustained serious injuries and the helicopter was substantially damaged. The US National Transportation Safety Board (NTSB) explain in their safety investigation report that the 61-year-old pilot had just 213 total flying hours, 80 as PIC...

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Flybe Fume Event (Part 1): Compressor Wash Maintenance Human Factors Case Study

Posted by on 7:55 pm in Accidents & Incidents, Fixed Wing, Human Factors / Performance, Maintenance / Continuing Airworthiness / CAMOs, Safety Management

Flybe Fume Event (Part 1): Compressor Wash Maintenance Human Factors Case Study (ERJ195 G-FBEJ) On 28 February 2019 Flybe Embraer ERJ-195 (ERJ-190-200 LR / E195) G-FBEJ was commencing takeoff in Exeter, bound for Alicante, when the flight crew detected a sweet-smelling odour and observed smoke entering the cockpit.  The takeoff was abandoned and after smoke and fumes were reported in the cabin an evacuation commenced.  This article, the first of two, will examine the cause of the fumes.  The second will examine the evacuation. The Safety...

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Human Factors of a Mali Mid Air Collision

Posted by on 1:24 pm in Accidents & Incidents, Helicopters, Human Factors / Performance, Military / Defence, Safety Management

Human Factors of a Mali Mid-Air Collision (MAC): ALAT Tiger and Cougar, Operation Barkhane, near Ménaka On 25 November 2019 two French Army helicopters, Airbus EC665 Tiger (Tigre) HAD 6017/F-MBJQ and Airbus AS532UL Cougar 2272/F-MCGE, collided in mid-air during a combat operation as part of Operation Barkhane, near Ménaka in Mali. The two crew of the Tiger and the 11 occupants of the Cougar died in the accident. The Events Leading to the MAC Investigators of the BEA-Etat (BEA-E) explain in their safety investigation report (issued on 29...

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RCAF Investigate Defect on Newly Delivered CH-148 Cyclone (S-92)

Posted by on 7:21 pm in Accidents & Incidents, Design & Certification, Helicopters, Human Factors / Performance, Maintenance / Continuing Airworthiness / CAMOs, Military / Defence, Safety Management

RCAF Investigate Terminal Wire Lug Defect on Newly Delivered CH-148 Cyclone (S-92) The Royal Canadian Air Force (RCAF) is investigating a defect that was found on 148805, a newly delivered Sikorsky CH-148 Cyclone (an S-92 military derivative), on 30 November 2020.  Investigators report: During the aircraft acceptance check for aircraft CH148805 [at 12 Wing, CFB Shearwater, Nova Scotia], avionics technicians inspected the #1 Power Distribution Unit as per the Fleet Work Instructions. Terminal wire lugs T1, T2 & T3 were found unsecured. T1...

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Inexperienced IIMC over Chesapeake Bay: Reduced Visual References Require Vigilance

Posted by on 6:21 pm in Accidents & Incidents, Helicopters, Human Factors / Performance, Safety Management

Inexperienced IIMC over Chesapeake Bay (Guimbal Cabri G2 N572MD): Reduced Visual References Require Vigilance Just after noon on 4 May 2019, the privately flown Guimbal Cabri G2 helicopter N572MD, was destroyed near Kent Island, Maryland, with the loss of both pilot and passenger, when it impacted the water. The Accident Flight The US National Transportation Safety Board (NTSB) explain in their safety investigation report that the flight was planned so the passenger could take photos of a family member’s fishing trip in Chesapeake Bay. ...

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Engine Shutdown Results in Revised SOV Rigging Instructions

Posted by on 5:45 pm in Accidents & Incidents, Business Aviation, Design & Certification, Human Factors / Performance, Maintenance / Continuing Airworthiness / CAMOs, Safety Management

Engine Shutdown Results in Revised SOV Rigging Instructions (Dassault Falcon 2000EX HB-IAU) On 4 October 2018 Dassault Falcon 2000EX HB-IAU suffered a rare Pratt & Whitney Canada (PWC) PW308C turbofan engine failure mode when an emergency fuel shut-off valve (SOV) “activated because of its incorrect rigging” say investigators.  Rather than simply dismiss this as a “Failure to Follow Procedures” following the investigation the manufacturer is enhancing its maintenance instructions. The Incident Flight The business...

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Fatal US Helicopter Air Ambulance Accident: One Engine was Failing but Serviceable Engine Shutdown

Posted by on 6:44 pm in Accidents & Incidents, Design & Certification, Helicopters, Human Factors / Performance, Safety Management, Special Mission Aircraft

Fatal US HAA Accident: One Engine was Failing but Serviceable Engine Shutdown (Air Methods / Duke Life Flight, Airbus Helicopters BK117C2 / EC145 N146DU, North Carolina) On 8 September 2017 Air Methods Corp (AMC) helicopter air ambulance (HAA) Airbus Helicopters BK117C2 / EC145 N146DU, operated for Duke Life Flight (DLF), crashed in a field close to an Amazon wind farm at Belvidere near Hertford, North Carolina. The helicopter was making a daytime 130 nm inter-hospital transfer from Sentara Albemarle Medical Center, Elizabeth City, NC for the...

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BK117 Impacts Sea, Scud Running off PNG

Posted by on 10:26 am in Accidents & Incidents, Crises / Emergency Response / SAR, Helicopters, Human Factors / Performance, Offshore, Safety Management, Survivability / Ditching

Airbus Helicopters BK117C1 Impacts Sea, Scud Running off PNG (Tribal Aurora Helicopters, P2-TAH) On 13 September 2019 Airbus Helicopters BK117C1 P2-TAH (formerly UK HEMS G-RESC), operated by Tribal Aurora Helicopters (TAH), was making an over sea VFR positioning flight from Buka to Tokua in Papua New Guinea (PNG), when it impacted the sea approximately 2.7 nm SE of Silur.  The pilot was killed, but the passenger, a company engineer, was rescued. The Accident Flight The PNG Accident Investigation Commission (AIC) explain in their safety...

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