External threat
Environment around
- distraction from passengers
- request from ATC
- missed approach
Anticipated threat
Weather
Heavy traffic
Unexpected threat
Distraction from passengers
In flight diversions
Latent threat
Not obvious but in background
- poor cockpit design
- bad company policies
Internal threat
Pilot fatigue
Health & fitness
Language barrier
Environmental threat
Weather - TS, icing, wind shear
Birds / obstructions
Airspace communication problems
Organisational threats
Documentation errors
Out of date maps
Handling errors
— Aircraft control, speed, power —
Systematic = always same error
Random = error at diff stages
Sporadic = occasionally serious error
Procedural error
Failure to follow checklist
Failure to circuit direction
Failure to stop at holding point
Communication errors
Non standard phraseology
Poor radio quality
Rapid speech
Undesired -
Aircraft handling states
Aircraft control
Altitude, track, speed deviations
Putting plane in dangerous situations
Poor technique in flying approach
Undesired -
Ground navigational states
Using wrong taxi way / runway
Taxiing to fast
Undesired -
Aircraft configuration states
Incorrect flaps
Incorrect autopilot
Incorrect fuel distribution
Incorrect weight distribution
Error correction
Rectifying an error