# Accident 20230629017899A: Diamond Aircraft Ind Inc DA 40 NG, Mohegan Lake, NY, June 29, 2023

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: June 29, 2023, 12:24 local time
- Place: Mohegan Lake, NY
- Airport: Westchester County
- Damage: Substantial damage
- Phase of flight: Takeoff: Climb Out
- Operating rules: General operating rules (Part 91)
- Location: 41.2693° N, 73.7766° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=41.2693&lon=-73.7766&mi=10
- Aircraft: N44HH, registered now (https://openairdocs.org/aircraft/N44HH) (OpenAirDocs)
- Registry model: Diamond Aircraft Ind DA 40 NG (registry code 2990014, https://openairdocs.org/model/diamond-aircraft-ind-da-40-ng) (OpenAirDocs)
- Registry engine: Austro E4 series (registry code 06400, https://openairdocs.org/engine/austro-e4-series) (OpenAirDocs)
- Reported make and model: DIAMOND AIRCRAFT IND INC DA 40 NG
- Reported engine: AUSTRO E4 SERIES
- People aboard: 1
- Fatal injuries: 0
- Other injuries: 1
- Pilot certificates: Private pilot
- Pilot flight hours: 740 in this make and model
- NTSB investigation: [NTSB ERA23LA285](https://openairdocs.org/ntsb/ERA23LA285) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20230629017899A

## Narrative

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

06/29/2023 1624Z

DA40, DECLARED AN EMERGENCY DUE TO A ENGINE ISSUE AND CRASHED INTO A FIELD NEAR A SCHOOL APROXIMATELY 15 KM NORTH OF THE AIRPORT . NO INJURIES OR DAMAGE REPORTED ON THE GROUND. POB: 1, INJURIES: MINOR, DAMAGE: SUBSTANTIAL.

AIRCRAFT ENGINE LOST POWER ON CLIMBOUT AT APPROXIMATELY 2000 MSL CAUSING DEGRADED PERFORMANCE TO SUSTAIN NORMAL CLIMB. ENGINE THEN LOST POWER TO MAINTAIN FLIGHT. PILOT DECIDED TO ATTEMPT A LANDING IN A SCHOOL YARD.

AIRCRAFT WAS MOVED TO A STORAGE LOT AT HPN. IIC AND ASI INSPECTED THE WRECKAGE ON 06/30/2023

DURING THE COURSE OF INVESTIGATION, IT BECAME KNOWN TO THE INSPECTORS, ^PRIVACY DATA OMITTED^ WAS AWARE OF A POTENTIAL POWER ISSUE WITH THE ENGINE. THE ^PRIVACY DATA OMITTED^ REPORTED AN ISSUE TO HIS MECHANIC AND WAS TOLD NOT TO FLY THE AIRCRAFT UNTIL THE ISSUED WAS ADDRESSED. THE ^PRIVACY DATA OMITTED^PILOT SUBSEQUENTLY ATTEMPTED TO FLY THE AIRCRAFT FROM HPN TO HIS MECHANIC IN MGJ (ORANGE COUNTY AIRPORT) WHEN HE HAD THE LOSS OF ENGINE POWER.

## 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 ERA23LA285](https://openairdocs.org/ntsb/ERA23LA285), Jun 29, 2023: Diamond DA40 (N44HH), Yorktown Heights, NY, substantial damage. Probable cause: A fatigue failure of the turbocharger housing, which resulted in a partial loss of engine power.

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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