CEN15CA373 · Ercoupe 415-C
Ercoupe 415-C · Accident: hard landing
From Butler Co Regional Airport - Hogan Field (HAO) to Sheboygan County Memorial Airport (SBM)
Event
- NTSB case
- CEN15CA373
- 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
- 0 · 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
Ercoupe 415-C
- Aircraft type
- Ercoupe 415
- Category
- Airplane
- 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
- N2765H
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Butler Co Regional Airport - Hogan Field (HAO), Hamilton, OHTo Sheboygan County Memorial Airport (SBM), Sheboygan, WI
- Aircraft age
- About 69 years (built 1946)
- 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
- Landing · flare/touchdown
- 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
- Hard landing
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Substantial
Cause areas
- Aircraft › Aircraft oper/perf/capability
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The non-instrument rated private pilot diverted to the alternate airport so as to avoid flight into instrument meteorological conditions along the intended route of flight path to a destination airport. While landing at the alternate airport, the airplane bounced and departed off the side of the runway. The airplane sustained substantial damage that included the engine firewall and right wing. The pilot stated that he reduced engine power and airspeed so as to increase separation with a preceding aircraft that was also landing, which resulted in "too much" airspeed being reduced and the bounced landing. The pilot stated that he was using active noise reduction headsets for the first time, which "greatly" reduced engine noise and "muted" audio input so as to not receive the "normal" audio indications that his senses were accustomed to on prior flights. The accident was not reported by the pilot and was discovered by a Federal Aviation Administration inspector during routine surveillance at the airport.
Probable cause
The pilot's failure to maintain/attain adequate airspeed and attitude during landing that resulted in a hard landing. Contributing was the pilot's diverted attention to air traffic and the reduction of perceptible audio cues due to noise attenuating headsets.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record CEN15CA373
- Event ID
- 20150821X24627
- Case number
- CEN15CA373
- 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. 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: 835487d15076b8a99497beed64a12c54cdc032e7a3390db480a24b80ccbf9355; retrieved 2026-09-16T02:42:18.248Z.