GALX, en-route, North East of Newfoundland, Canada, 2007

Summary: 

On 8 February 2007, A Gulfstream G-200 on an eastbound transatlantic delivery flight being undertaken by its operator entered a high altitude stall resulting from crew flight planning errors after which flight at an altitude incompatible with the performance limits of the aircraft as loaded was attempted. The crew response to this situation was confused but eventually, recovery to controlled flight was achieved. The Investigation attributed the event to lack of flight crew understanding of the core principles of flight at high altitude.

Event Details
When: 
08/02/2007
Event Type: 
Day/Night: 
Night
Flight Conditions: 
Not Recorded

18753

Flight Details
Aircraft: 
Type of Flight: 
Public Transport (Non Revenue)
Intended Destination: 
Actual Destination: 
Take-off Commenced: 
Yes
Flight Airborne: 
Yes
Flight Completed: 
Yes
Phase of Flight: 
Climb
Location
General
Tag(s): 
Inadequate Aircraft Operator Procedures, Copilot less than 500 hours on Type, Deficient Pilot Knowledge
HF
Tag(s): 
Data use error, Inappropriate crew response - skills deficiency, Procedural non compliance, Ineffective Monitoring - SIC as PF
LOC
Tag(s): 
Uncommanded AP disconnect, Loss of Engine Power, Flight Management Error, Temporary Control Loss
EPR
Tag(s): 
“Emergency” declaration
Outcome
Damage or injury: 
No
Non-aircraft damage: 
No
Non-occupant Casualties: 
No
Off Airport Landing: 
No
Ditching: 
No
Causal Factor Group(s)
Group(s): 
Aircraft Operation
Safety Recommendation(s)
Group(s): 
Aircraft Operation
Investigation Type
Type: 
Independent

Description

On 8 February 2007, A Gulfstream G-200, experienced a high altitude stall resulting from crew flight planning errors after which flight at an altitude incompatible with the performance limits of the aircraft as loaded was attempted and the response to the consequences was inappropriate due to lack of flight crew understanding of the core principles of flight.

The Final Report of the Investigation was approved on26 September 2007 and subsequently published.

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