# NTSB MKC83FA209: Piper PA-36-375, N3819E, Unionville, MO, September 1, 1983

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Field investigation · Final report
- Date: September 1, 1983, 09:20 local (14:20 UTC)
- Place: Unionville, MO
- Coordinates: 40.470252, -93.000755 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=40.4703&lon=-93.0008&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 33352
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC83FA209
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/33352/pdf
- Page: https://openairdocs.org/ntsb/MKC83FA209

## Sequence of events

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

- Airframe/component/system failure/malfunction, takeoff - initial climb
  - spray/dusting equipment - leak (contributing factor)
- Loss of control - in flight, approach - vfr pattern - final approach
  - stall/spin - inadvertent, pilot in command (cause)
  - load jettison - not performed, pilot in command (contributing factor)

## Analysis

THE ACFT WAS OBSERVED TO TURN 45 DEG TO THE LEFT AFTER TAKEOFF AND WHEN A SHORT DISTANCE PAST THE SOUTH END OF THE RUNWAY INITIATED A TURN RIGHT AS IF TO LAND ON RUNWAY 35. AS THE ACFT BECAME ALIGNED WITH RUNWAY 35, THE RIGHT WING DROPPED, THE ACFT ENTERED A SPIN AND HIT THE GROUND. EXAMINATION OF THE WRECKAGE DID NOT REVEAL ANY EVIDENCE OF PREIMPACT FAILURE OR DEFICIENCY IN THE ACFT BUT A WHITE LIQUID THOUGHT TO BE SPRAY CHEMICAL, COULD BE SEEN LEAKING FROM THE BOTTOM OF THE ACFT DURING THE SHORT FLIGHT.

## Aircraft

- Registration: [N3819E](https://openairdocs.org/deregistered/N3819E-1984-03-21), registration cancelled 1984-03-21, S/N 36-7802013, built 1978 (OpenAirDocs)
- Reported make and model: PIPER PA-36-375
- Registry model: [Piper PA-36-375](https://openairdocs.org/model/piper-pa-36-375) (registry code 7103620) (OpenAirDocs)
- Category: Airplane
- Serial number: 36-7802013
- Airframe hours: 1454
- Engines: LYCOMING IO720-DICD 375 horsepower reciprocating
- Damage: Destroyed
- Fire: On-Ground
- Flight: Aerial application, Part 137
- Operator: Donald G. Moore
- Registered owner: Storm Spraying Service, Inc.
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, July 7, 1983, 140 hours before
- Airport: K43, Unionville, runway 35, 2,800 × 50 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 27; commercial; airplane ratings: single-engine land; medical: class 2, invalid medical for flight; seat: center

## Weather

- Conditions: Visual (VMC), Day
- Wind: 50° at 6 knots
- Visibility: 5 statute miles
- Lowest ceiling: none
- Temperature: 70 °F, dew point 63 °F
- Altimeter: 30.00 inHg
- Observed at: IRK, 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 19830901049679A](https://openairdocs.org/incident/19830901049679A), Sep 1, 1983: Piper PA36375, Unionville, MO, Destroyed. Aircraft stalled and spun into the ground attempting to return to land after malfunction of spray equipment.

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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