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Atlas / NTSB / GAA17CA244

NTSB CAROL · Event

Event GAA17CA244

2017-04-24 Waukesha, Wisconsin, United States Airport · UES None 1 aircraft Status: Completed

Registry · N899CZ

FAA Aircraft Registry record.

Make / Model

BEECH 99A

Seats / Engines

17 seats · 2 engines

Last airworthiness date

19790308

ADS-B equipped

Yes — Mode-S AC670D

Registrant of record

N899CZ LLC

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

An in-flight collision with a bird during the approach.

Factual narrative

The pilot in command (PIC) of the airplane reported that during an instrument flight rules instructional flight, the airplane was established on a very high frequency omnidirectional range approach. The PIC reported that during the approach he observed a large bird that dove into the nose section of the airplane. The PIC recalled that there wasn't any reaction time between the initial observation and impact. He terminated the training flight and landed the airplane as soon as practical and without further incident. The airplane sustained substantial damage to the fuselage frame. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. The pilot flying the airplane reported that, during an instrument flight rules instructional flight, the airplane was established on a very high frequency omnidirectional range approach. The pilot reported that, during the approach, he observed a large bird dive into the airplane's nose section. The pilot recalled that there was no time to react between the initial observation and impact. He terminated the training flight and landed the airplane as soon as practical and without further incident. The airplane sustained substantial damage to the fuselage frame. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. 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)-Ability to respond/compensate - C

Verbatim from NTSB's published report. Source file NTSB_2017_GAA17CA244.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

Related research

What the literature says.

Academic papers and agency reports matching this event's aircraft type. Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.

Browse the full corpus — academia portal ↗