# NTSB NYC92LA152: Cessna 210J, N6172F, Groton, CT, August 9, 1992

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: August 9, 1992, 18:12 local (22:12 UTC)
- Place: Groton, CT
- Location: 41.3249° N, 72.0669° W: Placed by OpenAirDocs: center of Groton, CT, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.3249&lon=-72.0669&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report June 21, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 37199
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC92LA152
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/37199/pdf
- Page: https://openairdocs.org/ntsb/NYC92LA152

## Probable cause

A FORCED LANDING IN UNSUITABLE TERRAIN AS A RESULT OF A COMPLETE LOSS OF ENGINE POWER FOR UNKNOWN REASONS.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Loss of engine power, cruise
  - reason for occurrence undetermined
- Forced landing, descent - emergency
- In flight collision with terrain/water, landing - flare/touchdown
  - terrain condition - water

## Analysis

THE PILOT REPORTED THAT WHILE AT A CRUISE ALTITUDE OF 6000 FEET THE ENGINE OIL TEMPERATURE BEGAN TO INCREASE.  HE ASKED ATC FOR VECTORS TO THE NEAREST AIRPORT.  THE PILOT WAS VECTORED FOR AN ILS APPROACH BECAUSE OF LOW CEILINGS. ABOUT 8 NM FROM THE AIRPORT THE ENGINE OIL PRESSURE DROPPED TO ZERO AND THE ENGINE STOPPED COMPLETELY.  THE PILOT MADE A FORCED LANDING IN THE OCEAN AND AFTER HE EVACUATED THE AIRPLANE IT SANK.  THE AIRPLANE WAS NOT RECOVERED FROM THE OCEAN AND THE REASON FOR THE ENGINE FAILURE WAS NOT DETERMINED.

## Aircraft

- Registration: [N6172F](https://openairdocs.org/deregistered/N6172F-1993-09-27), registration cancelled 1993-09-27, S/N 21059072 (OpenAirDocs)
- Reported make and model: CESSNA 210J
- Registry model: [Cessna 210J](https://openairdocs.org/model/cessna-210j) (registry code 2073439) (OpenAirDocs)
- Category: Airplane
- Serial number: 21059072
- Engines: CONTINENTAL IO-520-J 285 horsepower reciprocating
- Damage: Destroyed
- Flight: Personal, Part 91
- Operator: William J. Dally
- Registered owner: William J. Dally
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, March 24, 1992, 70 hours before
- Departed: BED, BEDFORD, MA
- Destination: FRG, FARMINGDALE, NY
- Flight plan: IFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 32; commercial; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 672 total, 371 in this make and model, 580 as pilot in command, 70 in the last 90 days, 8 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Instrument (IMC), Day
- Lowest ceiling: 400 ft overcast

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19920809029869A](https://openairdocs.org/incident/19920809029869A), Aug 9, 1992: Cessna 210J, Groton - New Lo, CT, Destroyed. Reported lost oil pressure. Rough engine. Vector to return. Lost power. Ditched offshore. Aircraft not recovered.

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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