EC225/H225 Main Rotor Head and Main Gear Box Design (CHC LN-OJF Fatal Accident 2016) Following the recent tragic accident at Turøy near Bergen, Norway involving CHC Airbus EC225/H225 LN-OJF there is a lot of interest in the Main Rotor (MR) and Main Gear Box (MGB) design of the EC225. Here we provide some background information on the […]
EC225 Main Rotor Head and Main Gear Box Design Read Post »
During night winch training a German HEMS BK117 suffered a fatal CFIT in the Baltic, highlighting readiness, equipment, procedural and training issues.
Night Offshore Windfarm HEMS Winch Training CFIT (BK117C1 D-HDRJ) Read Post »
Inadvertently leaving lights dimmed, a compromised NVG mod, no aural low fuel warning and negligible recent experience on type all feature in this NZ HEMS incident.
Dim, Negative Transfer Double Flameout Read Post »
US Police Helicopter Night CFIT: Is Your Journey Really Necessary? On 27 March 2014, at 0147 local time, ex-military Bell OH-58A, N497E, operated by, the Kern County Sheriff’s Office (KCSO) collided with terrain near Tehachapi, California. The three occupants were uninjured, although the helicopter was substantially damaged. The Accident and Investigation The US National Transportation Safety Board (NTSB)
US Police Helicopter Night CFIT: Is Your Journey Really Necessary? Read Post »
Marine Pilot Transfer Winching Accident (Brim Aviation AW109SP N361CR) During a night Marine Pilot Transfer (MPT) helicopter winching / hoist operation on 21 April 2014, the marine pilot being transferred, was injured. The marine pilot was being transferred from an outgoing ship to a container vessel, inbound to Astoria, Oregon, the 222 m, 27,437 gross ton MV Northern
Marine Pilot Transfer Winching Accident Read Post »
AAIB Report on 2013 Sumburgh Helicopter Accident (CHC Scotia AS332L2 G-WNSB) The UK Air Accidents Investigation Branch (AAIB) has published its report into the 23 August 2013 accident were CHC Scotia Airbus Helicopters AS332L2 Super Puma G-WNSB impacted the sea on approach to Sumburgh Airport in the Shetland Islands. The AAIB report is 266 pages long. This article is
AAIB Report on 2013 Sumburgh Helicopter Accident (CHC Scotia AS332L2 G-WNSB) Read Post »
On 12 Mar 2009 17 people lost their lives in a preventable accident when the failure of an oil filter stud highlighted a known fatal flaw in the type’s design.
2009 Newfoundland S-92A C-GZCH Accident: A Failure of Design and Certification Read Post »
Step Change in Safety: Helicopter Safety Update 2016 Step Change in Safety held a webinar on North Sea helicopter safety (covering CA-EBS, emergency egress, FCOMs and airworthiness matters) on 9 March 2016 (following on from a March 2015 event we have previously covered). Introduction Step Change is a tripartite UK offshore health and safety organisation combining companies,
Step Change in Safety: Helicopter Safety Update 2016 Read Post »
Heli-Expo 2016 Photo Report News from HAI Heli-Expo 2016 in Louisville, Kentucky (1-3 March 2016): Airbus Helicopters H215 Airbus Helicopters had on show the newly designated H215, formerly the AS332C1e (i.e. an enhanced, short fuselage Super Puma) and AS332L1e (the long fuselage version), to be built in Romania and aimed at aerial work, disaster relief and other
Heli-Expo 2016 Photo Report Read Post »
Pitot Punctures Floats in Icelandic SAR Ditching The ditching of Icelandic Coast Guard Aérospatiale SA365N Dauphin TF-SIF in the Atlantic off Reykjavik on 16 July 2007 highlights the importance of avoiding protuberances that can puncture emergency flotation systems, careful configuration management and establishing emergency drills. The Icelandic Transportation Safety Board (ITSB), the RNF, issued their report in
Pitot Punctures Floats in Icelandic SAR Ditching Read Post »
UK CAA CAP1145 North Sea Helicopter Safety Two Years On Not long after the fatal loss of Eurocopter AS332L2 G-WNSB of Sumburgh Airport, Shetland Islands on 23 August 2013 with 4 fatalities (AAIB Special Bulletin), the UK Civil Aviation Authority (CAA) launched an rapid review on offshore helicopter safety. That CAA Review resulted in the CAP1145 report (‘Safety review of
UK CAA CAP1145 North Sea Helicopter Safety Two Years On Read Post »
US Helicopter Accident Rate Analysis Aerossurance recently looked at US Helicopter Emergency Medical Service (HEMS) accident data for the last 10 years and has also examined accident rates in Gulf of Mexico (GOM) oil and gas operations. We thought we would also look at published accident rates for all US helicopters and demonstrate the effects of choosing different start
US Helicopter Accident Rate Analysis Read Post »
First Eleven: RAeS Guidance for Design Organisations on Maintenance Human Performance The Royal Aeronautical Society (RAeS) Human Factors Group: Engineering (HFG:E) has published a short guidance document on 11 steps an aviation Design Organisation (DO) can take to “deliver safer, more effective and reliable aircraft through improved design for maintenance”. The RAeS say: Aircraft safety
First Eleven: Guidance for Designers on Maintenance Human Performance Read Post »
A maintenance error installing a TRDS bearing resulted in an EC130B4 LOC-I. An excellent AIBN report highlights the value of Independent Inspections.
EC130B4 Accident: Incorrect TRDS Bearing Installation Read Post »
Troublesome Tiedowns The US National Transportation Safety Board (NTSB) has recently reported on two cases in October 2015 were helicopters offshore suffered accidents after the tie-downs were not fully removed: Fish Spotting Helicopter, Pacific Ocean (B206, N1060C) On 21 October 2015 Bell 206B N1060C was being prepared for take-off from the 74m Fishing Vessel Majestic Sun off Christmas Island,
Troublesome Tiedowns Read Post »
US HEMS Accident Rates 2006-2015 The safety of US Helicopter Emergency Medical Service (HEMS) operations has been a topic we have discussed previously. With HeliExpo approaching, when 10 years of the International Helicopter Safety Team (IHST) will be marked and with US NTSB Board Member Robert Sumwalt just publishing a HEMS article in Professional Pilot,
US HEMS Accident Rates 2006-2015 Read Post »
Ignoring Corrosive Environment Brings Down B206 Helicopter An operator that ignored the Rolls-Royce M250-C20 Series Engine Operation and Maintenance Manual classification of their entire island operating location as a “severe corrosion operating environment” and failed to do the associated maintenance requirements suffered the loss of the their Bell 206B3. Emerald Pacific Airlines B206B3 B-31019 was hovering at
Ignoring Corrosive Environment Brings Down B206 Helicopter Read Post »
Finmeccanica Strives For Greater Gearbox Loss of Lube Capability Finmeccanica Helicopters (the recently rebranded AgustaWestland (UPDATE: and now Leonardo) is working to enhance the durability of helicopter Main Gear Boxes (MGBs) after a loss of lubrication. The company’s Marco Tamborini presented their approach at the European Aviation Safety Agency (EASA) 9th Rotorcraft Symposium held in Cologne in December
Leonardo Strives For Greater Gearbox Loss of Lube Capability Read Post »
HEMS S-76C Night Approach Loss of Control – In-flight (LOC-I) Incident A Helicopter Emergency Medical Service (HEMS) Sikorsky S-76C+ C-GHHJ operated by Helijet on behalf of the BC Ambulance Service was on a VFR approach to the coastal Tofino/Long Beach Airport (CYAZ), British Columbia, Canada at 02:39 Local Time on the dark, moonless night of 15 November 2015. It suffered a Loss of Control
HEMS S-76C+ Night Approach LOC-I Incident Read Post »
CAP1145 Helicopter Water Impact Survivability Statistics – A Critique Eurocopter AS332L2 G-WNSB impacted the sea 1.5 nm west of Sumburgh Airport, Shetland Islands on 23 August 2013 (see the last AAIB Special Bulletin) with the loss of 4 lives. https://youtu.be/C_3xlunGUk0 Within weeks the UK Civil Aviation Authority (CAA) ordered a hurried safety review. This resulted in the CAP1145 report (‘Safety review of offshore public transport
CAP1145 Helicopter Water Impact Survivability Statistics – A Critique Read Post »
HUMS Vibration Health Monitoring Success Australia’s Civil Aviation Safety Authority (CASA) has published a Service Difficulty Report (SDR), dated 1 November 2015, that highlights a Health & Usage Monitoring System (HUMS) Vibration Health Monitoring (VHM) success. During investigation of a HUMS vibration alert, the main rotor head of an Airbus Helicopters EC225/H225 offshore helicopter was examined and wear was identified beyond the limits
HUMS Vibration Health Monitoring Success Read Post »
Aerossurance Marks RAeS 150th Anniversary by Sponsoring Rotorcraft Automation Conference The Royal Aeronautical Society (RAeS) was founded on 12 January 1866, so is today celebrating its 150th anniversary (or sesquicentennial). To mark this significant milestone Aerossurance is pleased to be sponsoring the Society’s 2016 Rotorcraft Conference. This conference, to be held 6-7 July 2016 at the
Aerossurance Marks RAeS 150th Anniversary by Sponsoring Rotorcraft Automation Conference Read Post »
Helicopter HUMS Maintenance Credit: New Initiatives Health and Usage Monitoring Systems (HUMS) were first introduced 25 years ago as a safety enhancement for offshore helicopters in the UK and Norway. Even in the early days of HUMS the prize of ‘maintenance credits’ was envisaged: i.e. using the HUMS data to reduce invasive physical inspections and disassembly (with
Helicopter HUMS Maintenance Credit: New Initiatives Read Post »
Aerossurance: Our Top 20 Articles of 2015 As we start the new year we look back on the 20 articles that proved most popular with our readers in 2015. In reverse order: Number 20: Building St Helena Airport – An Industrial Scale ‘Grand Design’ This started with the building of the first airport on the volcanic
Our Top 20 Articles of 2015 Read Post »
Dangers of Aircraft Tyre (US: Tire) Inflation The Royal Canadian Air Force are investigating two recent tyre inflation burst accidents. Both involve visiting aircraft using borrowed equipment: 25 August 2015 CT-114 Tutor CT114058 A Snowbird aircraft was diverted from the rest of the deployed team due to an in-flight emergency. The aircraft was repaired, including a successful
Dangers of Aircraft Tyre Inflation Read Post »
