# Accident 20230119008389A: Beech A36, North Castle, NY, January 19, 2023

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: January 19, 2023, 17:29 local time
- Place: North Castle, NY
- Airport: Westchester County
- Damage: Substantial damage
- Phase of flight: Climb
- Operating rules: General operating rules (Part 91)
- Location: 41.0821° N, 73.7281° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=41.0821&lon=-73.7281&mi=10
- Aircraft: N19MT, registered now (https://openairdocs.org/aircraft/N19MT) (OpenAirDocs)
- Registry model: Beech A36 (registry code 1151604, https://openairdocs.org/model/beech-a36) (OpenAirDocs)
- Registry engine: Lycoming IO-520 series (registry code 41584, https://openairdocs.org/engine/lycoming-io-520-series) (OpenAirDocs)
- Reported make and model: BEECH A36
- Reported engine: LYCOMING IO-520 SER
- People aboard: 2
- Fatal injuries: 2
- Other injuries: 0
- NTSB investigation: [NTSB ERA23FA113](https://openairdocs.org/ntsb/ERA23FA113) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20230119008389A

## Narrative

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

WHITE PLAINS, NY (HPN):  ^PRIVACY DATA OMITTED^ BE36, PART 91, IFR, JFK TO CGF, CRASHED INTO TREES ON A PENINSULA IN RYE LAKE, APPROXIMATELY 1 MILE NNW OF HPN. PILOT REPORTED DEAD CYLINDER AND LOSS OF OIL PRESSURE AND DECLARED AN EMERGENCY. ATC ASSISTED IN DIVERSION TO HPN AND PROVIDED VECTORS FOR ILS 16 APPROACH. RADIO CONTACT WAS LOST AND THE AIRCRAFT WAS LATER FOUND TO HAVE CRASHED IN TREES.  THERE WERE TWO SOB AND BOTH SUSTAINED FATAL INJURIES. AIRCRAFT WAS SUBSTANTIALLY DAMAGED. HOLE WAS NOTED IN THE ENGINE CRANKCASE ABOVE THE NO. 6 CYLINDER POSITION. THE CONNECTING ROD CAP WITH 2 ENTRAPPED FRACTURED CONNECTING ROD BOLTS WAS FOUND INSIDE THE ENGINE BELOW THE HOLE OPENING.

## 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 ERA23FA113](https://openairdocs.org/ntsb/ERA23FA113), Jan 19, 2023: Beech A36 (N19MT), North Castle, NY, substantial damage, 2 fatal. Probable cause: The pre-ignition/detonation damage to the No. 4 piston for reasons that could not be determined, which allowed the crankcase to become pressurized and resulted in oil exhaustion and subsequent…

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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