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 »
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 »
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 »
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 »
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 »
An oil and gas helicopter suffered an accident when it struck a pothole In Louisiana.
S-76C+ MLG Collapsed Due to Pothole Read Post »
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 »
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 »
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 »
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.
Distractions and fatigue were involved in a CFIT in Japan in which 9 rescuers died.
Japanese Rescue B412 Fatal CFIT Read Post »
BEA point to a series of human factors and technical problems in this near mid air collision.
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 »
A stressed and erratic aircraft commander featured in this horrific landing accident in Nepal.
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.
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 »
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 »
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 »
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 »
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 »
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 »
At an uncontrolled aerodrome the Jungmann biplane struck the B412’s tail rotor. The biplane pilot died but all 10 POB on the firefighting helicopter survived.
Fatal Biplane/Helicopter Mid Air Collision in Spain, 30 December 2017 Read Post »
Potential confusion with an unfamiliar cockpit, spatial disorientation and fatigue are all factors in this Cessna 525 accident that killed 6.
Disorientated Dive into Lake Erie Read Post »
After 10 years, the ANSV report on a massive bird strike on a Ryanair 737 landing in Rome. Engine surges foiled a go-around and the aircraft landed hard in a near stalled state.
Final Report Issued on 2008 B737 Bird Strike Accident in Rome Read Post »
An inadequate USAF propeller overhaul preceded an in-flight failure that resulted on loss of a USMC C-130 and 16 personnel.
Inadequate Maintenance at a USAF Depot Featured in Fatal USMC KC-130T Accident Read Post »
