NTSB CAROL · Event
Event WPR10CA157
Aircraft involved
Probable cause & findings
An in-flight collision with a bird in the downwind leg of the airport's traffic pattern.
Factual narrative
The certified flight instructor (CFI) reported that she and her student planned to perform a series of takeoffs and landings at the airport. Their first takeoff occurred about 1410, and the CFI requested and received an air traffic clearance to remain in the pattern. The airplane's anti-collision light was operating. The lowest layer of clouds was located about 2,800 feet above ground level, and the visibility was 25 miles. There was light turbulence in the area. About 1430, after making three touch-and-go landings, the air traffic controller requested that the pilot fly an extended downwind leg. The CFI stated that "shortly thereafter, we noticed a red-tail hawk slightly ahead and at our same altitude. Upon sighting the bird, I immediately took control from my student and initiated a climbing turn to the left. A few seconds later we heard a loud impact on our right wing tip. I immediately looked out the window and noticed the wing had extensive damage." The CFI reported that she immediately landed, and during the approach she did not detect any noticeable effect on the airplane's performance. Regarding the extent of the damage, the flight school's director of maintenance reported that the outboard span of leading edge wing skin, immediately inboard of the wing tip, was crushed about 8 inches in an aft direction. In this area, an outer wing rib was cracked, and two ribs were bent. The span of the deformation was almost 3 feet, and a major structural airframe repair was required to fix the damaged wing. No residue of the impacted bird was found. Several photographs (included in the docket for this report) were provided to the National Transportation Safety Board by the airplane rental company, Golden State Flying Club, El Cajon, California. The certified flight instructor (CFI) and student performed a series of takeoffs and landings at the airport. The airplane's anti-collision light was operating. Clouds were located about 2,800 feet above ground level and the visibility was 25 miles. There was light turbulence in the area. While in the downwind leg for their fourth landing, the air traffic controller requested that the pilot fly an extended downwind leg. The CFI stated that "shortly thereafter, we noticed a red-tail hawk slightly ahead and at our same altitude. Upon sighting the bird, I immediately took control from my student and initiated a climbing turn to the left. A few seconds later we heard a loud impact on our right wing tip. I immediately looked out the window and noticed the wing had extensive damage." The CFI reported that she immediately landed, and during the approach she did not detect any noticeable effect on the airplane's performance. A 3-foot-long by 8-inch-deep area of the right wing's leading edge was crushed aft, and the internal wing structure was bent. No residue from the bird was found. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12
NTSB Findings
Hierarchical cause / factor breakdown from the FAA bulk avdata database. Each finding tagged C (Cause) or F (Factor).
- C Environmental issues-Physical environment-Object/animal/substance-Animal(s)/bird(s)-Effect on equipment - C
Verbatim from NTSB's published report. Source file
NTSB_2010_WPR10CA157.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
Beyond the agency record
Search this event elsewhere.
Pre-filled searches into the sources where news + community discussion of aviation events lives. External sources are reported, not agency. Treat them as signal that something happened, not as fact about what happened.
Entity-clustered aviation events in the press — last 24 hr + 30-day archive.
Official agency record + docket.
Investigative docket: factual reports, photos, transcripts.
Long-running aviation incident database (Flight Safety Foundation).
Community NTSB synthesis blog — often has photos and witness reports.
Gold-standard aviation incident blog.
Aviation industry news search.
GA pilot forum — informed but rumor-prone.
GA pilot subreddit search.
Tail-number page — flight history (free tier limited).
AOPA Air Safety Institute search.
Mainstream press coverage. Recent events only.
Privacy-preserving news search.
External links open in a new tab. We don't ingest their content; we deep-link search queries.
Related research
What the literature says.
Academic papers and agency reports matching this event's aircraft type or causal vocabulary (turbulence, maintenance). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
- Embry-Riddle Scholarly Commons 2025 · Journal article (JAAER)
Political Turbulence and Aviation Safety: A Cross-National Analysis of Political Stability's Effects on Aviation Accidents
To what extent does political stability affect aviation safety? This research aims to link domestic political conditions and public safety through the consideration of aviation accident frequency.
- Embry-Riddle Scholarly Commons 2026 · Journal article (IJAAA)
From Reactive to Predictive: A hybrid Trust-Mediated Adoption Framework for Data-Driven Maintenance in Distributed-Authority Aviation Environments
Modern aviation maintenance operates within increasingly data-intensive technological environments, yet the operational integration of predictive maintenance into routine decision-making remains incon…
- arXiv 2026 · arXiv preprint
Direct Numerical Simulations of Ice-Ocean Boundary Turbulence
Turbulent heat and freshwater transport at ice-ocean interfaces controls glacier and iceberg melt rates, yet the underlying physics remains poorly constrained.
- arXiv 2025 · arXiv preprint
Explainable LiDAR 3D Point Cloud Segmentation and Clustering for Detecting Airplane-Generated Wind Turbulence
Wake vortices - strong, coherent air turbulences created by aircraft - pose a significant risk to aviation safety and therefore require accurate and reliable detection methods.
- Semantic Scholar 2025 · Article (Applied Sciences)
Decision-Making Framework for Aviation Safety in Predictive Maintenance Strategies
The implementation of predictive maintenance (PM) in aviation presents unique challenges due to strict safety requirements, complex operational environments, and regulatory constraints.
- arXiv 2024 · arXiv preprint
Does small-scale turbulence matter for ice growth in mixed-phase clouds?
Representing the glaciation of mixed-phase clouds in terms of the Wegener-Bergeron-Findeisen process is a challenge for many weather and climate models, which tend to overestimate this process because…
Browse the full corpus — academia portal ↗