USAF T-38C Downed by Bird Strike
The trainer struck the 0.9 kg bird while at 1000-1500 ft AGL. The bird strike caused a catastrophic engine failure and an unrecoverable fire.
USAF T-38C Downed by Bird Strike Read Post »
Maintenance Misdiagnosis Precursor to EC135T2 Tail Rotor Control Failure
Incorrect troubleshooting was conducted after previous reports of stiff anti-torque pedals, possibly inadvertently untightening a left hand thread.
Maintenance Misdiagnosis Precursor to EC135T2 Tail Rotor Control Failure Read Post »
Easyjet A320 Flap / Landing Gear Mis-selections
AAIB examine the human factors related to a number of flap / landing gear mis-selections.
Easyjet A320 Flap / Landing Gear Mis-selections Read Post »
USAF Tool Trouble: “Near Catastrophic” $25mn E-8C FOD Fuel Tank Rupture
Ineffective tool control was behind a ‘near catastrophic’ incident on 13 March 2009.
USAF Tool Trouble: “Near Catastrophic” $25mn E-8C FOD Fuel Tank Rupture Read Post »
Fatal S-61N Dual Power Loss During Post Maintenance Check Flight
NTSB unable to determine the reasons for dual engine power loss during a post maintenance check flight. They do note “an improper decision to attempt another maneuver after recovering from a perceived compressor stall”.
Fatal S-61N Dual Power Loss During Post Maintenance Check Flight Read Post »
Engine Failure after Inadvertently Being Put Back into Service Incomplete
An AGB module was inadvertently sent for overhaul. Work commenced before it was realised. The module was then sent back u/s but the log card entry was changed subsequently to serviceable not realising a filter was missing. The pilot made an excellent autorotation though.
Engine Failure after Inadvertently Being Put Back into Service Incomplete Read Post »
Helicopter Ops and Safety – Gulf Of Mexico 2018 Update
A decline in GOM helicopter usage continues. There was only one air accident in 2018.
Helicopter Ops and Safety – Gulf Of Mexico 2018 Update Read Post »
What a Difference a Hole Makes: E-8C JSTARS $7.35 million Radar Mishap
Contractor errors in base maintenance have a high financial impact.
What a Difference a Hole Makes: E-8C JSTARS $7.35 million Radar Mishap Read Post »
USAF Parachutist Fatally Extracted Through Ventilation Door
The parachute was inadvertently deployed through a small ventilation door. We look at the ergonomics of the parachute and an absence of guidance on use of the ventilation door.
USAF Parachutist Fatally Extracted Through Ventilation Door Read Post »
S-76C+ MLG Collapsed Due to Pothole
An oil and gas helicopter suffered an accident when it struck a pothole In Louisiana.
S-76C+ MLG Collapsed Due to Pothole Read Post »
Merlin Night Airprox: Systemic Issues
Ambitious training, poorly integrated equipment with no policy on its use, u/s transponders and reduced radar coverage all feature in this airprox with two ASW helicopters.
Merlin Night Airprox: Systemic Issues Read Post »
AS350B2 Accident After Vibration from Unrecorded Maintenance
Four days before the accident the MRBs had been removed and re-installed. No RTB was done. While ground running at a remote site, increasing vibration triggered the pilot to lift off. NR was low and the helicopter tumbled down a slope.
AS350B2 Accident After Vibration from Unrecorded Maintenance Read Post »
ADA AW139 A6-AWN Ditching off UAE, 29 April 2017: Final Report
The GCAA AAIS discuss the cause of a precautionary ditching and examine the performance of flotation and survival features.
ADA AW139 A6-AWN Ditching off UAE, 29 April 2017: Final Report Read Post »
Meeting Your Waterloo: Competence Assessment and Remembering the Lessons of Past Accidents
No one was injured in this low speed derailment after signal maintenance errors but investigators expressed concern that the lessons from the fatal triple collision at Clapham in 1988 may have been forgotten.
Japanese Rescue B412 Fatal CFIT
Distractions and fatigue were involved in a CFIT in Japan in which 9 rescuers died.
Japanese Rescue B412 Fatal CFIT Read Post »
A319 / Cougar Airprox at MRS: ATC Busy, Failed Transponder and Helicopter Filtered From Radar
BEA point to a series of human factors and technical problems in this near mid air collision.
Production Defect IFSD Triggers Night Deadstick PC-12 Landing
An ambiguous spec for standard parts features in a nighttime engine failure and nearly 30 IFSDs before the problem was contained.
Production Defect IFSD Triggers Night Deadstick PC-12 Landing Read Post »
Commander of Crashed Dash 8 Q400 in Nepal “Harboured Severe Mental Stress” Say Investigators
A stressed and erratic aircraft commander featured in this horrific landing accident in Nepal.
MC-12W Loss of Control Orbiting Over Afghanistan: Lessons in Training and Urgent Operational Requirements
A very low experience on type flight crew had been paired together. Surprisingly little comment is made by investigators of insufficient certification testing of the modified aircraft and the failure to act after 4 prior ‘near catastrophic’ stall events.
Software Bug and High Winds Down Drone
AAIB comment that new operators with little, or no, previous aviation experience are developing procedures for small un-certified UAS which presents a challenge to ensure safe operation of this expanding area of aviation.
Software Bug and High Winds Down Drone Read Post »
RCMP AS350B3 Left Uncovered During Snowfall Fatally Loses Power on Take Off
The engine intake was left uncovered during a lunch break, when it had started to snow. This allowed ice to form that broke away and damaged the engine. Turns out similar happened at a US HEMS operator within 12 months.
RCMP AS350B3 Left Uncovered During Snowfall Fatally Loses Power on Take Off Read Post »
HF of the Selection of Parking Brake Instead of Speed Brake During a Hectic Approach
AAIB examine the human factors related to the mistaken selection of a parking brake instead of the speed brake that was the precursor to an ERJ145 runway excursion at Bristol.
HF of the Selection of Parking Brake Instead of Speed Brake During a Hectic Approach Read Post »
Incorrectly Rigged B1900D Charlotte, NC, 8 January 2003: 21 Fatalities
The crew were unable to control the aircraft in pitch due to errors during maintenance two evenings before. We look at some of the human performance influencing factors in this accident that killed 21.
Incorrectly Rigged B1900D Charlotte, NC, 8 January 2003: 21 Fatalities Read Post »
British Midland Boeing 737-400 G-OBME Fatal Accident, Kegworth 8 January 1989
Fan flutter triggered a fan blade failure that was misdiagnosed. 47 died in the crash near the Leicestershire village of Kegworth.
British Midland Boeing 737-400 G-OBME Fatal Accident, Kegworth 8 January 1989 Read Post »
USAF CSAR HH-60G Downed by Geese in Norfolk, 7 January 2014
A night Combat SAR training mission took two helicopters low over marshland. The second helicopter was brought down by birds scared by the lead aircraft.
USAF CSAR HH-60G Downed by Geese in Norfolk, 7 January 2014 Read Post »