| F13 | Airport security vehicle accident | Machine |
| F14 | Failure of communication and navigation facilities | Machine |
| F15 | Power failure | Machine |
| F16 | Airport power facilities failure | Machine |
| F17 | Runway light failure | Machine |
| F18 | Network failure | Machine |
| F19 | Check-in system failure | Machine |
| F20 | Visual aid facilities failure | Machine |
| F21 | Aviation oil accident | Machine |
| F22 | Security vehicle oil accident | Machine |
| F23 | Meteorological facilities failure | Machine |
| F24 | Aircraft monitoring facilities failure | Machine |
| F25 | Accidents between aircraft and vehicle | Machine |
| F26 | Accidents between aircraft and aircraft | Machine |
| F27 | Blowout of aircraft tire | Machine |
| F28 | Smog | Environment |
| F29 | Fog | Environment |
| F30 | Rainstorm | Environment |
| F31 | Thunderstorm | Environment |
| F32 | Low cloud | Environment |
| F33 | Bird pest | Environment |
| F34 | Fierce wind | Environment |
| F35 | Typhoon | Environment |
| F36 | Jamming of artificial laser transmitter in flight protection area | Human |
| F37 | Playing unmanned aerial vehicle in the clearance area | Human |
| F38 | Flying kites in the clearance area | Human |
| F39 | Kongming latern burned in the clearance area | Human |
| F40 | Fireworks burned in the clearance area | Human |
| F41 | Machine maintenance cause | Management |
| F42 | Reasons for aircraft maintenance | Management |
| F43 | Too much traffic at the security office | Management |
| F44 | Military exercise | Management |
| F45 | Runway seeper | Environment |
| F46 | Flow control | Management |
| F47 | The flight arrived late | Management |
| F48 | Aircraft deployment | Management |
| F49 | Mechanical failure | Management |