# NTSB NYC83FHA05: Dimaria BD-4D, N68020, Pittstown, NJ, July 23, 1983

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Final report
- Date: July 23, 1983, 13:30 local (17:30 UTC)
- Place: Pittstown, NJ
- Location: 40.5820° N, 74.9591° W: Placed by OpenAirDocs: center of Pittstown, NJ, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.5820&lon=-74.9591&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 35098
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC83FHA05
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/35098/pdf
- Page: https://openairdocs.org/ntsb/NYC83FHA05

## Sequence of events

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

- Loss of engine power, takeoff - initial climb
  - reason for occurrence undetermined (cause)
  - engine assembly,cylinder - low compression
- Forced landing, landing - flare/touchdown
- Overrun, landing - roll
- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - soft (contributing factor)
- Nose over, landing - roll

## Analysis

PRE-TAKEOFF RUN-UP WAS NORMAL. AS THE ACFT LIFTED OFF THE RWY THE ENG QUIT. THE ACFT RAN OFF THE RWY ONTO SOFT GROUND & FLIPPED OVER. THE ONLY ENG MALFUNCTION FOUND WAS LOW COMPRESSION IN THE #1 CYLINDER DUE TO BOTH VALVES BEING STUCK PARTIALLY OPEN. ALL FUEL HAD DRAINED FROM THE FUEL TANKS WHILE THE ACFT LAY UPSIDE DOWN. THERE WERE NO QUICK DRAINS IN THE WING FUEL TANKS; PLUGS WERE INSTALLED INSTEAD. FUEL CAN ONLY BE CHECKED FOR CONTAMINATION BY DRAINING FUEL FROM THE QUICK DRAIN AT THE FIREWALL FILTER.

## Aircraft

- Registration: [N68020](https://openairdocs.org/deregistered/N68020-2013-10-23), registration cancelled 2013-10-23, S/N 430, built 1970 (OpenAirDocs)
- Reported make and model: DIMARIA BD-4D
- Registry model: [Dimaria BD-4D](https://openairdocs.org/model/dimaria-bd-4d) (registry code 1130454) (OpenAirDocs)
- Registry engine: [Lycoming I0360 SER A&C](https://openairdocs.org/engine/lycoming-i0360-ser-a-c) (registry code 41511, reciprocating) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: 430
- Airframe hours: 240
- Engines: LYCOMING IO-360-B1B 180 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Ralph Dimaria
- Airworthiness certificate: Special, Experimental (Special)
- Last inspection: Annual, April 1, 1983, 26 hours before
- Airport: NONE, Alexandria Field

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 34; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 310 total, 202 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 88 °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 19830723048789A](https://openairdocs.org/incident/19830723048789A), Jul 23, 1983: Amtrbd BEDEBD4, Pittstown, NJ, Substantial damage. Engine malfunction occurred during takeoff and crash occurred during emergency landing.

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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