News & Comment

B214ST Tail Rotor Drive Shaft Coupling Misassembly

Accidents & Incidents, Helicopters, Human Factors / Performance, Maintenance / Continuing Airworthiness / CAMOs, Offshore, Oil & Gas / IOGP / Energy, Safety Management, Special Mission Aircraft, Survivability / Ditching

A maintenance error resulted in a loss of TR drive on a firefighting B214ST. We look at three airworthiness related incidents with the same airframe in UKCS offshore operations.

B214ST Tail Rotor Drive Shaft Coupling Misassembly Read Post »

T-Bolt Trouble: Unrecorded Maintenance on US HEMS BK117C2/H145 and Loss of TR Pitch Control

Accidents & Incidents, Helicopters, Human Factors / Performance, Maintenance / Continuing Airworthiness / CAMOs, Safety Management, Special Mission Aircraft

Components disconnected without paperwork being raised, temporarily refitted finger tight and the absence of lockwire being missed….and not for the first time.

T-Bolt Trouble: Unrecorded Maintenance on US HEMS BK117C2/H145 and Loss of TR Pitch Control Read Post »

Engine & Emergency Flotation Failures – Greenland B206L4 Ditching

Accidents & Incidents, Crises / Emergency Response / SAR, Design & Certification, Helicopters, Maintenance / Continuing Airworthiness / CAMOs, Offshore, Safety Management, Survivability / Ditching

A tiny loose turbine bearing tang triggers an autorotation but frozen water in a hose caused the EFS to malfunction. SB/ICA changes for engine and EFS.

Engine & Emergency Flotation Failures – Greenland B206L4 Ditching Read Post »

UK CAA HOFO ACAS Rulemaking 2025 & a 2004 Tornado / AS332L Airprox

Accidents & Incidents, Air Traffic Management / Airspace, Design & Certification, Fixed Wing, Helicopters, Military / Defence, Offshore, Oil & Gas / IOGP / Energy, Regulation, Safety Management

UK CAA are proposing making ACAS II mandatory for offshore helicopters: we look back to the 2004 incident that prompted a demonstration that ACAS II was practical for helicopters.

UK CAA HOFO ACAS Rulemaking 2025 & a 2004 Tornado / AS332L Airprox Read Post »

S-76D Loss of Control on Approach to an Indian Drilling Rig

Accidents & Incidents, Crises / Emergency Response / SAR, Design & Certification, Helicopters, Human Factors / Performance, Offshore, Oil & Gas / IOGP / Energy, Regulation, Safety Culture, Safety Management, Survivability / Ditching

A low time on type crew lost control while distracted. Everyone escaped but 4 died in the water due to poor briefings and inadequate rescue capability.

S-76D Loss of Control on Approach to an Indian Drilling Rig Read Post »

Startled Shutdown: Fatal USAF E-11A Global Express PSM+ICR Accident

Accidents & Incidents, Design & Certification, FDM / Data Recorders, Fixed Wing, Human Factors / Performance, Military / Defence, Safety Management, Special Mission Aircraft

A fan blade off event leads to an engine automatic shutdown. The crew shut down the serviceable engine and choose to divert 200 NM further than necessary leading to a forced landing.

Startled Shutdown: Fatal USAF E-11A Global Express PSM+ICR Accident Read Post »

29 Seconds to Impact: A Fatal Night Offshore Approach in the Irish Sea

Accidents & Incidents, Airfields / Heliports / Helidecks, Crises / Emergency Response / SAR, FDM / Data Recorders, Helicopters, Human Factors / Performance, Offshore, Oil & Gas / IOGP / Energy, Regulation, Safety Culture, Safety Management

A loss of control on approach to a helideck at night that completes a trilogy of case studies where visual cueing at offshore platforms is believed to have been a significant factor.

29 Seconds to Impact: A Fatal Night Offshore Approach in the Irish Sea Read Post »

An Air Traffic Control Assisted H-60 Collision

Accidents & Incidents, Air Traffic Management / Airspace, Airfields / Heliports / Helidecks, Helicopters, Human Factors / Performance, Military / Defence, Oil & Gas / IOGP / Energy, Safety Management, Special Mission Aircraft

Brown Field ATC cleared two H-60s to land on a runway underrun despite them being over the paving weight limit, then asked one to go around and it collided with the other. Everyone survived.

An Air Traffic Control Assisted H-60 Collision Read Post »

DA62 Forced Landing After Double Engine Shutdown Due to Multiple Electrical Issues

Accidents & Incidents, Design & Certification, Fixed Wing, Human Factors / Performance, Maintenance / Continuing Airworthiness / CAMOs, Safety Management

NTSB were unable to identify the cause of the initiating electrical failure but did identify two battery issues, one connected to a maintenance error & inadequate functional test requirement.

DA62 Forced Landing After Double Engine Shutdown Due to Multiple Electrical Issues Read Post »

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