# NTSB NYC84FA233: Grumman AA-5, N9519L, Woodstock, NY, July 6, 1984

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Field investigation · Final report
- Date: July 6, 1984, 14:25 local (18:25 UTC)
- Place: Woodstock, NY
- Coordinates: 42.029361, -74.110809 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=42.0294&lon=-74.1108&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 35354
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC84FA233
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/35354/pdf
- Page: https://openairdocs.org/ntsb/NYC84FA233

## Sequence of events

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

- In flight collision with terrain/water, maneuvering
  - vfr flight into imc - continued, pilot in command (cause)
  - terrain condition - rising (contributing factor)
  - weather condition - low ceiling (contributing factor)
  - weather condition - fog (contributing factor)

## Analysis

ACFT WAS ON A VFR PERSONAL FLIGHT. WITNESS ON MOUNTAIN SLOPE HEARD SOUNDS OF APPROACHING ACFT, OBSERVED BRIEF GLIMPSE OF ACFT WHEEL AND WING THROUGH CLOUD AND FOG ABOUT 100 FT AWAY, AT TREE-TOP LEVEL. A FEW SECONDS LATER. WITNESS HEARD ENG SOUND CEASE. INVESTIGATION SHOWED ACFT CUT A LEVEL SWATH THROUGH TREES DURING IMPACT SEQUENCE.

## Aircraft

- Registration: [N9519L](https://openairdocs.org/deregistered/N9519L-2013-05-23), registration cancelled 2013-05-23, S/N AA5-0619, built 1974 (OpenAirDocs)
- Reported make and model: GRUMMAN AA-5
- Registry model: [Grumman American Avn. AA-5](https://openairdocs.org/model/grumman-american-avn-aa-5) (registry code 3960104) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: AA5-0619
- Airframe hours: 1167
- Engines: LYCOMING O-320-E2G 150 horsepower reciprocating
- Damage: Destroyed
- Flight: Personal, Part 91
- Registered owner: Charles J. Sweeney, Jr.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, October 3, 1983, 44 hours before
- Departed: BTV, BURLINGTON, VT

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 59; private; airplane ratings: single-engine land; medical: class 2, valid medical--w/ waivers/lim; seat: left; toxicology performed; flight hours: 621 total, 486 as pilot in command, 16 in the last 90 days, 8 in the last 30 days, 2 in the last 24 hours

## Weather

- Conditions: Instrument (IMC), Day
- Wind: 170° at 5 knots
- Visibility: 3 statute miles
- Lowest ceiling: 1,000 ft broken
- Temperature: 73 °F, dew point 64 °F
- Altimeter: 29.00 inHg
- Observed at: SWF, 35 nm away

## 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 19840706034979A](https://openairdocs.org/incident/19840706034979A), Jul 6, 1984: Gulstm AA5, Woodstock, NY, Destroyed. Struck trees in mountainous rising terrain area. No reported weather briefing for non IFR pilot on crosscountry.

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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