On September 22, 2017, a CESSNA 172 S operated by Hanseo USA LLC was involved in an aviation accident near Chino, CA. No fatalities were reported. Investigators recorded the probable cause as: An in-flight collision with a bird while on downwind. This summary draws on records from NTSB; 12 related events involving the same aircraft type or operator are linked below.
A flight instructor took control from a student pilot to avoid a bird, but the airplane struck the bird on downwind. Substantial damage to left wing; no mechanical failures pre-accident.
Incident Details
The event occurred during a training flight. A student pilot was operating the controls while the aircraft was on the downwind leg. The flight instructor observed a bird approaching the airplane. The instructor reported that he then assumed control of the aircraft from the student and initiated a left bank in an effort to avoid the bird. Despite this evasive action, the airplane collided with the bird. Following the bird strike, the airplane landed without further incident.
Aircraft Damage
The collision resulted in substantial damage to the left wing of the airplane. No other damage was reported.
Additional Information
The flight instructor stated that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The Federal Aviation Administration Airport Facility Diagram for the airport includes the notation: "Birds and wildlife on and invof [in vincinity of] arpt."
Contributing factors
Ability to respond/compensate
Related events
Same aircraft family
24 Sep 2026 — CESSNA 172B
23 Sep 2026 — CESSNA 172
18 Sep 2026 — CESSNA 172
16 Sep 2026 — CESSNA 172M (CK Aviation LLC)
9 Sep 2026 — CESSNA 172
8 Sep 2026 — CESSNA 172N
7 Sep 2026 — CESSNA 172N (Tin Cup Investments INC)
24 Aug 2026 — CESSNA 172M
21 Aug 2026 — CESSNA 172P (Vascular Wings LLC)
18 Aug 2026 — CESSNA 172L (Ocala Aviation Services INC)
16 Aug 2026 — CESSNA 172L (Foothill Aircraft Sales and Service Inc.)
9 Aug 2026 — CESSNA 172N (Kimber 123 Holdings LLC)
What happened in the 22 Sept 2017 CESSNA 172 S accident near Chino, CA?
A flight instructor took control from a student pilot to avoid a bird, but the airplane struck the bird on downwind. Substantial damage to left wing; no mechanical failures pre-accident.
Were there any fatalities in the 22 Sept 2017 CESSNA 172 S accident?
No fatalities were recorded in this accident.
What aircraft was involved and where did it happen?
The accident on 22 Sept 2017 involved a CESSNA 172 S, operated by Hanseo USA LLC, at Chino, CA.
What was the probable cause of the accident?
An in-flight collision with a bird while on downwind.
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