# Accident 20201117019599A: Herzstein Donald L COZY IV, Compton, CA, November 17, 2020

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: November 17, 2020, 14:15 local time
- Place: Compton, CA
- Airport: Compton Woodley Airport
- Damage: Substantial damage
- Phase of flight: Landing: Touchdown
- Operating rules: General operating rules (Part 91)
- Location: 33.8910° N, 118.2437° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=33.8910&lon=-118.2437&mi=10
- Aircraft: N82V, registered now (https://openairdocs.org/aircraft/N82V) (OpenAirDocs)
- Registry model: Herzstein Donald L COZY IV (registry code 05612GS, https://openairdocs.org/model/herzstein-donald-l-cozy-iv) (OpenAirDocs)
- Registry engine: Amateur-built UNKNOWN ENG (registry code 99999, https://openairdocs.org/engine/amateur-built-unknown-eng) (OpenAirDocs)
- Reported make and model: HERZSTEIN DONALD L COZY IV
- Reported engine: AMA/EXPR IO-360
- People aboard: 2
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Private pilot
- Pilot flight hours: 2,500 total, 330 in this make and model, 10 in the last 90 days
- NTSB investigation: [NTSB WPR21LA071](https://openairdocs.org/ntsb/WPR21LA071) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20201117019599A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

ON NOVEMBER 17, 2020, AT APPROX. 1415 LOCAL TIME, N82V, A COZY IV CERTIFICATED IN THE EXPERIMENTAL ARMATURE BUILT CATEGORY LANDED ON RUNWAY 25L AT CPM (COMPTON WOODLEY AIRPORT, COMPTON CA) AFTER EXPERIENCING A ROUGH RUNNING ENGINE AND DECLARING AN EMERGENCY. THE AIRCRAFT EXPERIENCED A HARD LANDING AND SUBSEQUENTLY LOST CONTROL. THE AIRCRAFT DEPARTED THE RUNWAY AND WENT INTO THE DIRT ON THE SOUTH SIDE OF RUNWAY 25L.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB WPR21LA071](https://openairdocs.org/ntsb/WPR21LA071), Nov 17, 2020: Co Z Cozy (N82V), Compton, CA, substantial damage. Probable cause: The partial loss of engine power due to an improperly installed sparkplug.

## Other reports on N82V (1)

Matched to the same aircraft by N-number and date.

- [Incident 20040909021729I](https://openairdocs.org/incident/20040909021729I), Sep 9, 2004: Amtr COZYMKIV (N82V), Chino, CA, Minor damage. (-23) Mr. Herzstein landed his cozy iv aircraft on cno rwy 26R nose gear up.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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