# NTSB CEN21WA093: Cessna 401B, N517HC, Toussus-le-Noble, France, October 30, 2020

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Class 4 · Foreign
- Date: October 30, 2020, 15:26 local (15:26 UTC)
- Place: Toussus-le-Noble, France
- Coordinates: 48.75018, 2.11282
- Nearby events: https://openairdocs.org/map.md?lat=48.7502&lon=2.1128&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Defining event: [Approach: Powerplant sys/comp malf/fail](https://openairdocs.org/ntsb-events/340)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Led by another country's authority
- Investigation class: Class 4 - Basic report with no Prelim publish
- NTSB office: Central Region
- Lead agency: Other
- Parties: Bureau d'Enquêtes et d'Analyses
- NTSB case key (mKey): 102439
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN21WA093
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/102439/pdf
- Page: https://openairdocs.org/ntsb/CEN21WA093

## Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event best describes what happened.

- [Approach: Powerplant sys/comp malf/fail](https://openairdocs.org/ntsb-events/340) (defining event); cases with it: [Cessna 401B, 1 case](https://openairdocs.org/ntsb-events/340/sequence.md?model=207590E), [All aircraft, 820 cases](https://openairdocs.org/ntsb-events/340/sequence.md)
- [Approach: Fire/smoke (non-impact)](https://openairdocs.org/ntsb-events/150); cases with it: [Cessna 401B, 1 case](https://openairdocs.org/ntsb-events/150/sequence.md?model=207590E), [All aircraft, 504 cases](https://openairdocs.org/ntsb-events/150/sequence.md)

## Aircraft

- Registration: [N517HC](https://openairdocs.org/deregistered/N517HC-2025-03-31), registration cancelled 2025-03-31, S/N 401B0048 (OpenAirDocs)
- Reported make and model: CESSNA 401B
- Registry model: [Cessna 401B](https://openairdocs.org/model/cessna-401b) (registry code 207590E) (OpenAirDocs)
- Registry engine: [Continental TSIO-520 series](https://openairdocs.org/engine/continental-tsio-520-series) (registry code 17040, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 401B0048
- Damage: Substantial damage
- Fire: In-Flight
- Flight: Flight test, Non-U.S., non-commercial

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.

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