|
| Numbers | Risk factors | Degree |
|
| V1 | Abort approach | 38 |
| V2 | Go-around | 9 |
| V3 | Rainfall | 2 |
| V4 | Turbulence | 3 |
| V5 | Reapproach | 13 |
| V6 | Flap fault | 2 |
| V7 | Bird strike | 3 |
| V8 | Runway suspended | 7 |
| V9 | Avoid | 5 |
| V10 | Ground proximity warning | 3 |
| V11 | Crossing the runway waiting line | 4 |
| V12 | Conflict | 10 |
| V13 | TCAS warning | 1 |
| V14 | Conflict warning | 2 |
| V15 | PTCAS | 1 |
| V16 | Blind approach | 14 |
| V17 | Waiting in place | 3 |
| V18 | Controller briefing | 33 |
| V19 | Inspect | 18 |
| V20 | Safe landing | 11 |
| V21 | Approach coordination | 3 |
| V22 | Normal approach | 6 |
| V23 | Continue approach | 5 |
| V24 | Run off the runway | 9 |
| V25 | Alarm elimination | 2 |
| V26 | Suit of pavement | 3 |
| V27 | Change runway to land | 4 |
| V28 | Glide back | 25 |
| V29 | Take-off interrupted | 21 |
| V30 | Automatic pressurization system failure | 1 |
| A1 | Wind shear | 3 |
| A2 | Turbulent flow | 3 |
| A3 | Thunderstorm | 1 |
| A4 | Unable to see the runway | 1 |
| A5 | Excessive tailwind | 1 |
| A6 | Excessive gust | 1 |
| A7 | Orders plane to slow down | 12 |
| A8 | Causes of runway configuration | 1 |
| A9 | Failed to get off the runway in time | 1 |
| A10 | Unable to see the front plane | 9 |
| A11 | Still has catch-up trend | 3 |
| A12 | Under the wake interval | 9 |
| A13 | Overweight | 2 |
| A14 | Continue to catch up with the front plane | 7 |
| A15 | Catch up with the front plane | 7 |
| A16 | Dissatisfaction landing interval | 2 |
| A17 | There is a trend of catching up | 6 |
| A18 | Unstable approach | 3 |
| A19 | Bias navigation | 3 |
| A20 | Crosswind | 1 |
| A21 | Frost fog | 1 |
| B1 | Repair | 2 |
| B2 | No foreign matter was found | 1 |
| B3 | The equipment is normal | 3 |
| B4 | Departure aircraft waiting | 1 |
| B5 | The course signal is normal | 3 |
| B6 | Confirm whether the blind drop signal is stable | 2 |
| B7 | Course stability | 2 |
| B8 | Fragments | 1 |
| B9 | Plastic bag | 1 |
| B10 | Course signal instability | 3 |
| B11 | Course instability | 5 |
| B12 | The one minute vector line swings left and right | 3 |
| B13 | The course signal is unstable | 2 |
| B14 | Signal instability of glide path | 2 |
| B15 | The radar signal swings left and right | 1 |
| B16 | Radar track swing | 2 |
| C1 | MSAW alarm | 1 |
| C2 | Descent height | 2 |
| C3 | Stop descent | 2 |
| C4 | Alarm release | 1 |
| C5 | Unidentified vehicle | 2 |
| C6 | Controller call field service assistance handling | 2 |
| C7 | Radio jamming channel | 2 |
| C8 | Get off the runway | 1 |
| C9 | Deviation taxiway | 2 |
| C10 | Guided vehicle passes the waiting point without permission | 1 |
| C11 | Runway intrusion warning | 2 |
| C12 | Controller verification | 2 |
| C13 | The guide car exits outside the waiting point | 1 |
| C14 | Breaking the command height | 1 |
| C15 | Keep going up | 2 |
| C16 | Controller command descent | 2 |
| C17 | The height setting is correct | 1 |
| C18 | Flight procedure error | 1 |
| C19 | Upwind not turning according to the procedure | 2 |
| C20 | Deviation from procedure | 2 |
| C21 | Rejoin the correct take-off procedure | 1 |
| C22 | Conflict resolution | 6 |
| C23 | No TCAS alarm | 1 |
| C24 | Controller asked if it could be visualized | 2 |
| C25 | Visualization | 2 |
| C26 | Keep visualization | 2 |
| C27 | Converging flight at the same altitude | 1 |
| C28 | Converging flight | 2 |
| C29 | Slow down | 1 |
| C30 | Under the regular interval | 1 |
| C31 | Waiting outside the runway | 1 |
| C32 | Drive-bird car for road inspection | 1 |
| C33 | Waiting on taxiway | 2 |
| C34 | Delay | 1 |
| D1 | Drone | 5 |
| D2 | Tower verification to crew | 4 |
| D3 | Not found by the crew | 5 |
| D4 | The operation was not affected | 2 |
| D5 | Departure aircraft affected | 1 |
| D6 | Approach aircraft affected | 1 |
| D7 | The moving direction is uncertain | 1 |
| D8 | Balloon | 4 |
| D9 | Crew visual balloon activity | 1 |
| D10 | Kite | 1 |
| D11 | Floater | 1 |
| D12 | Laser irradiation | 1 |
| E1 | Airforce activities | 1 |
| E2 | Reasons for passengers | 1 |
| E3 | Mechanical fault | 1 |
| E4 | Aircraft fault | 1 |
| E5 | Fuel leakage | 1 |
| E6 | Pollute taxiway | 2 |
| E7 | The reason of frontier defense | 1 |
| E8 | Crew timeout | 1 |
| E9 | The visual range of runway is lower than its landing standard | 1 |
| E10 | Pavement icing | 1 |
| E11 | Flight control system fault | 1 |
| E12 | Weather radar fault | 1 |
| E13 | Aircraft technical reasons | 1 |
| E14 | Front wheel turning fault | 1 |
| E15 | Engine core de-icing component fault | 1 |
| E16 | Departure time limit | 1 |
| E17 | There are approaching planes on final | 2 |
| E18 | Oil replenishment | 1 |
| E19 | Abnormal front tire pressure display | 1 |
| E20 | Hit by a special vehicle | 1 |
| F1 | No impact on runway | 1 |
| F2 | The tower asked if there was any hydraulic oil leakage | 2 |
| F3 | No hydraulic oil leakage | 2 |
| F4 | Need rescue service | 2 |
| F5 | Suspension of subsequent take-off activities | 2 |
| F6 | Further confirm the fault information | 1 |
| F7 | Apply for glide back | 2 |
| F8 | Uncertain whether there is any abandoning and scattering objects | 2 |
| F9 | No service is required | 1 |
| F10 | Recovery of runway | 2 |
| F11 | Coordination of relevant airport departments | 1 |
| F12 | The rear cargo door warning light extinguish | 2 |
| F13 | RebJoting | 2 |
| F13 | The rear cargo door is closed | 1 |
| F14 | The push back light is on at the same time | 2 |
| F16 | The computer shows that the hydraulic pressure is low | 1 |
| F17 | Lost GPS signal | 1 |
| F18 | Rear gate light on | 1 |
| F19 | Rear cargo door warning light on | 1 |
| F20 | Rear passenger compartment gate warning light on | 1 |
| F21 | Fire engine in place | 2 |
| F21 | Warehouse fire | 1 |
| F22 | Fire emergency | 2 |
| F24 | There is no smoke or fire outside the engine room | 2 |
| F25 | The fire engine taxied behind | 1 |
| F26 | There is no abnormal phenomenon in the fire report | 1 |
| F27 | Right engine fault | 1 |
| F28 | Oil leakage may occur | 1 |
| F29 | Hatch open | 1 |
| F30 | Cockpit voice recorder fault | 1 |
| F31 | Computer fault | 1 |
| F32 | Configuration alert | 1 |
| F33 | Take-off configuration alert | 1 |
| F34 | Front door of engine room not opened | 1 |
| F35 | Air-brake fault | 1 |
| F36 | Left side engine fault | 1 |
| — | — | — |
|
