# NTSB NYC90LA035: Beech B-23, N2350L, Tinton Falls, NJ, November 27, 1989

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: November 27, 1989, 11:30 local (16:30 UTC)
- Place: Tinton Falls, NJ
- Location: 40.2663° N, 74.0961° W: Placed by OpenAirDocs: center of Tinton Falls, NJ, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.2663&lon=-74.0961&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report June 25, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 36589
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC90LA035
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/36589/pdf
- Page: https://openairdocs.org/ntsb/NYC90LA035

## Probable cause

PRECAUTIONARY LANDING IN UNSUITABLE TERRAIN FOLLOWING A PARTIAL POWER LOSS DUE TO A FAILED EXHAUST VALVE.

## Sequence of events

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

- Loss of engine power(partial) - mech failure/malf, cruise
  - engine assembly,valve,exhaust - failure,total (cause)
- Loss of control - on ground/water, landing - roll
  - terrain condition - soft (cause)

## Analysis

THE PILOT OF BEECH 23 WAS CRUISING AT 1000 FEET A.G.L. WHEN HE HEARD A TAPPING NOISE FROM THE ENGINE AND EXPERIENCED A PARTIAL POWER LOSS. HE ELECTED TO MAKE A PRECAUTIONARY LANDING IN A LAND FILL. THE NOSE AND RIGHT MAIN LANDING GEAR COLLAPSED IN THE SOFT TERRAIN. POST CRASH EXAMINATION OF THE ENGINE SHOWED A FAILED 7/16TH INCH EXHAUST VALVE IN THE #3 CYLINDER. AVAILABLE RECORDS INDICATED THE ENGINE HAD 2010 HOURS AND THE MANUFACTURER RECOMMENDS OVERHAUL AT 1200 HOURS WITH THE 7/16TH INCH EXHAUST VALVE. NO RECORDS WERE AVAILABLE TO INDICATE IF THE ENGINE HAD BEEN OVERHAULED.

## Aircraft

- Registration: [N2350L](https://openairdocs.org/deregistered/N2350L-2013-09-19), registration cancelled 2013-09-19, S/N M-187, built 1963 (OpenAirDocs)
- Reported make and model: BEECH B-23
- Registry model: [Beech 23](https://openairdocs.org/model/beech-23) (registry code 1151202) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: M-187
- Airframe hours: 2010
- Engines: LYCOMING O-320-D28 160 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Robert W. Sampson
- Registered owner: Robert Sampon/Alan Spector
- Airworthiness certificate: Standard, Normal
- Departed: 3N6, OLD BRIDGE, NJ

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 25; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 138 total, 126 in this make and model, 100 as pilot in command, 2 in the last 90 days, 2 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Visibility: 7 statute miles
- Temperature: -0 °F, dew point -0 °F

## 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 19891127047439A](https://openairdocs.org/incident/19891127047439A), Nov 27, 1989: Beech 23BEECH, Tinton Falls, NJ, Substantial damage. Loud engine noise en route. Partial power los. Landed in landfill. NR3 exhaust valve failed. Engine way over tbo.

## Other investigations on N2350L (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 NYC66F0114](https://openairdocs.org/ntsb/NYC66F0114), Jun 30, 1965: Beechcraft 23 (N2350L), New City, NY, substantial damage

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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