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CEN23FA333 · Rotorway 162F

29 Jul 2023 · Oshkosh, WI, United States

Rotorway 162F and ELA Eclipse 10 · Accident: midair collision on approach

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Event

NTSB case
CEN23FA333
Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
Accident
InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
Completed
API-reported fatalities
2 · all aircraft and ground
Ground fatalities
Unknown
OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
General aviation
WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
Visual Meteorological Cond

Aircraft 1 · Rotorway 162F

Aircraft type
Rotorway 162
Category
Helicopter
RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
N193AZ
Operator
Unknown
Onboard fatalities
Unknown
Route
From not recordedTo not recorded
Aircraft age
About 11 years (built 2012)
Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
Part 91: General Aviation
Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
Approach
Defining eventThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
Midair collision
DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
Destroyed

Aircraft 2 · ELA Eclipse 10

Aircraft type
Ela Eclipse 10
Category
Helicopter
RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
N221EL
Operator
Unknown
Onboard fatalities
Unknown
Route
From not recordedTo not recorded
Aircraft age
Not recorded
Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
Part 91: General Aviation
Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
Not recorded
Defining eventThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
Not recorded
DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
Destroyed

Cause areas

  • Personnel issues › Action/decision
  • Personnel issues › Experience/knowledge
  • Personnel issues › Physical
  • Personnel issues › Psychological

Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.

NTSB narrative

A gyroplane and helicopter collided midair while maneuvering for landing in day visual meteorological conditions. The aircraft were participating in a fly-in event that provided daily pilot briefings on flight operations and procedures. During the briefings, event coordinators informed pilots that 360° turns in the traffic pattern were prohibited.

Flight track information, witness statements, videos, and damage to the aircraft indicated that the gyroplane impacted the left side of the helicopter while performing a prohibited 360° turn on the base leg of the visual approach. The helicopter impacted terrain, came to rest inverted, and a postaccident fire ensued. The gyroplane impacted an unoccupied airplane. The gyroplane pilot had no recollection of the accident flight.

Postaccident examinations of both aircraft revealed no evidence of mechanical malfunctions or failures that would have precluded normal operations. The circumstances of the accident are consistent with the failure of the gyroplane pilot to see and avoid the helicopter while performing a prohibited maneuver in the traffic pattern, resulting in a collision with the helicopter.

Probable cause

The failure of the gyroplane pilot to see and avoid the helicopter while maneuvering in the traffic pattern. Contributing to the accident was the gyroplane pilot’s performance of a prohibited maneuver in the traffic pattern.

Verbatim NTSB analysis and probable cause from the NTSB dataset

Sources

NTSB record CEN23FA333
Event ID
20230729192738
Case number
CEN23FA333
Dataset
full-current
Source SHA-256
5cf380f0061817c0331a6b2d8cc7e0ee3a79bea469a1001dc5c10e56f35f5ab3
Source notes (4)
  • Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
  • Filled from the NTSB case API where the bulk record had no value: investigation status, cause areas. Values present in the bulk record are kept.
  • The date is the local date, which is the same as the UTC date the NTSB stores.
  • API snapshot SHA-256: 7f1da820f527e8f720e555d88de065132729262295a8a7b20cda700d542693f5; retrieved 2026-09-13T18:11:44.459Z.