# NTSB SEA83LA049: Cessna A188B, N4784Q, Medford, OR, February 2, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: February 1, 1983, 17:00 local (Feb 2, 1983, 01:00 UTC)
- Place: Medford, OR
- Coordinates: 42.279872, -122.900596 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=42.2799&lon=-122.9006&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 39658
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA83LA049
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/39658/pdf
- Page: https://openairdocs.org/ntsb/SEA83LA049

## Sequence of events

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

- In flight collision with object, maneuvering - aerial application
  - object - tree(s) (contributing factor)
  - visual lookout - inadequate, pilot in command (cause)
- Forced landing, landing - flare/touchdown

## Analysis

THE AIRCRAFT COLLIDED WITH A TREE DURING AERIAL APPLICATION OPERATIONS. THE PILOT STATED THAT THERE WAS A POWERLINE AT ONE END OF THE ORCHARD HE WAS SPRAYING AND A ROW OF LEAFLESS TREES AT THE OTHER. ONE OF THE TALLER BOUNDARY TREES WAS OVERLOOKED BY THE PILOT AND THE ACFT HIT IT. THE COLLISION PUNCHED A HOLE IN THE OIL COOLER AND FORCED THE PILOT TO MAKE AN OFF AIRPORT LANDING.

## Aircraft

- Registration: [N4784Q](https://openairdocs.org/deregistered/N4784Q-2013-08-15), registration cancelled 2013-08-15, S/N 18802526T, built 1976 (OpenAirDocs)
- Reported make and model: CESSNA A188B
- Registry model: [Cessna A188B](https://openairdocs.org/model/cessna-a188b) (registry code 2073005) (OpenAirDocs)
- Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 18802526T
- Airframe hours: 1241
- Engines: CONTINENTAL IO-520-D 300 horsepower reciprocating
- Damage: Destroyed
- Flight: Aerial application, Part 137
- Operator: Pacific Air Research, Inc.
- Registered owner: Ken Owen
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, January 11, 1983, 11 hours before
- Airport: MFR, Jackson County

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 24; commercial; airplane ratings: single-engine land; medical: class 2, expired; seat: front; flight hours: 1,500 in this make and model, 2,057 as pilot in command, 300 in the last 90 days, 70 in the last 30 days, 10 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 20 statute miles
- Lowest ceiling: none
- Temperature: 48 °F, dew point 37 °F
- Altimeter: 29.00 inHg
- Observed at: MFR, 3 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 19830201003249A](https://openairdocs.org/incident/19830201003249A), Feb 1, 1983: Cessna A188B, Medford, OR, Destroyed. Aircraft hit tree during agricultural operation.

## Other investigations on N4784Q (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 SEA05CA069](https://openairdocs.org/ntsb/SEA05CA069), Apr 4, 2005: Cessna A188B (N4784Q), Palouse, WA, substantial damage. Probable cause: The pilot's failure to maintain terrain clearance during the initial climb after takeoff. A tailwind, hilly terrain and inadequate airspeed were factors.

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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