Aviation Occurrences at ST. CATHARINES / NIAGARA DISTRICT ON (CYSN)

1,002Total occurrences

By year

1994: 3
1997: 1
1998: 5
1999: 20
2000: 52
2001: 50
2002: 56
2003: 33
2004: 52
2005: 39
2006: 37
2007: 51
2008: 56
2009: 45
2010: 55
2011: 52
2012: 44
2013: 33
2014: 21
2015: 33
2016: 32
2017: 33
2018: 20
2019: 30
2020: 15
2021: 18
2022: 14
2023: 23
2024: 30
2025: 34
2026: 15

By category

Other: 563
ATM/CNS: 280
System/component failure or malfunction [non-powerplant]: 137
Airprox/TCAS alert/loss of separation/(near) midair collisions: 122
Aerodrome: 95
Runway incursion - vehicle, aircraft or person: 77
Runway incursion - animal: 64
Wildlife: 41
Undershoot/overshoot: 40
Bird: 29
System/component failure or malfunction [powerplant]: 24
Loss of control - ground: 22

Recent occurrences

2026O1854 · 2026-07-02 · Incident · ST. CATHARINES / NIAGARA DISTRICT ON (CYSN)
2026O1751 · 2026-06-20 · Incident · ST. CATHARINES / NIAGARA DISTRICT ON (CYSN)
2026O1654 · 2026-06-11 · Incident · ST. CATHARINES / NIAGARA DISTRICT ON (CYSN)
2026O1537 · 2026-06-04 · Incident · ST. CATHARINES / NIAGARA DISTRICT ON (CYSN)
2026O1270 · 2026-05-18 · Incident · ST. CATHARINES / NIAGARA DISTRICT ON (CYSN)
2026O1297 · 2026-05-17 · Incident · ST. CATHARINES / NIAGARA DISTRICT ON (CYSN)
2026O1155 · 2026-05-04 · Incident · ST. CATHARINES / NIAGARA DISTRICT ON (CYSN)
2026O1134 · 2026-05-03 · Incident · ST. CATHARINES / NIAGARA DISTRICT ON (CYSN)
2026O1146 · 2026-05-02 · Incident · ST. CATHARINES / NIAGARA DISTRICT ON (CYSN)
2026O0989 · 2026-04-23 · Incident · ST. CATHARINES / NIAGARA DISTRICT ON (CYSN)
2026O0797 · 2026-04-05 · Incident · ST. CATHARINES / NIAGARA DISTRICT ON (CYSN)
2026O0751 · 2026-03-18 · Incident · ST. CATHARINES / NIAGARA DISTRICT ON (CYSN)
2026O0341 · 2026-02-09 · Incident · ST. CATHARINES / NIAGARA DISTRICT ON (CYSN)
2026O0001 · 2026-01-24 · Incident · ST. CATHARINES / NIAGARA DISTRICT ON (CYSN)
2026O0005 · 2026-01-15 · Incident · ST. CATHARINES / NIAGARA DISTRICT ON (CYSN)
2025O3564 · 2025-12-05 · Incident · ST. CATHARINES / NIAGARA DISTRICT ON (CYSN)
2025O3490 · 2025-11-22 · Incident · ST. CATHARINES / NIAGARA DISTRICT ON (CYSN)
2025O3350 · 2025-11-14 · Incident · ST. CATHARINES / NIAGARA DISTRICT ON (CYSN)
2025O3311 · 2025-11-13 · Incident · ST. CATHARINES / NIAGARA DISTRICT ON (CYSN)
2025O3163 · 2025-10-18 · Incident · ST. CATHARINES / NIAGARA DISTRICT ON (CYSN)
2025O2975 · 2025-10-11 · Incident · ST. CATHARINES / NIAGARA DISTRICT ON (CYSN)
2025O3003 · 2025-10-03 · Incident · ST. CATHARINES / NIAGARA DISTRICT ON (CYSN)
2025O2893 · 2025-09-29 · Incident · ST. CATHARINES / NIAGARA DISTRICT ON (CYSN)
2025O2925 · 2025-09-29 · Incident · ST. CATHARINES / NIAGARA DISTRICT ON (CYSN)
2025O2786 · 2025-09-20 · Incident · ST. CATHARINES / NIAGARA DISTRICT ON (CYSN)

Occurrence counts reflect reporting activity and traffic volume, not a measure of relative safety. Source: Transport Canada — CADORS, under the Open Government Licence – Canada.

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