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Accidents · NTSB SEA89LA076 · Final report

Bell 47G3B2 accident near Milton-Freewtr, Oregon, April 29, 1989

On April 29, 1989 at about 5:30 pm local time, a Bell 47G3B2 (helicopter), registered N4072G, was substantially damaged in an accident near Milton-Freewtr, Oregon. It was an aerial application (crop spraying) flight under agricultural flying rules (Part 137). 1 person had minor injuries. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

IMPROPER PLANNING/DECISION BY THE PILOT, WHICH RESULTED IN FUEL EXHAUSTION FROM AN INADEQUATE SUPPLY OF FUEL.

Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.

What the record shows

Date
April 29, 1989 · about 5:30 pm local time
Place
Milton-Freewtr, Oregon · map
Type
Accident
Injuries
1 person had minor injuries.
Weather
visual conditions (good weather)
Aircraft
Bell 47G3B2 · all 47G3B2s on the register
Registration
N4072G · no longer on the register · serial 6702
Damage
Substantial damage
Flight
Aerial application (crop spraying) flight · agricultural flying rules (Part 137)

The NTSB's narrative final · quoted from the NTSB record

THE PLT STATED THAT THE ENG LOST POWER DURING A PROCEDURE TURN-AROUND & THAT INSUFFICIENT SPEED & ALTITUDE WERE AVAILABLE TO PREVENT A HARD AUTOROTATIVE LANDING. DURING TOUCHDOWN, THE MAIN ROTOR SEVERED THE TAILBOOM. ONLY ABOUT 1/2 GAL OF FUEL WAS REMAINING IN THE INTACT FUEL SYSTEM.

The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.

The factual record from the NTSB's investigation tables, in plain English

Pilot

  • Certificate: commercial pilot
  • Ratings: single-engine land; instrument: helicopter; rotorcraft: helicopter
  • Flight time: 7,800 hours in all; 450 in this make and model; 85 in the last 90 days; 70 in the last 30 days; 7,400 as pilot in command
  • Medical certificate: Class 2 (valid medical--no waivers/lim.)
  • Seat: left

The aircraft

  • Airframe total time: 6,516 hours
  • Last inspection: annual inspection, November 12, 1988; 106 hours since
  • Maximum gross weight: 3,200 lb
  • Seats: 3
  • Landing gear: fixed
  • Engine: Allison 250-C20 (turboshaft); 0 hours total

The flight

  • Flight plan: none
  • Runway 0

Weather at the time

  • Light: daylight
  • Wind: from 180° at 3 knots
  • Visibility: 20 statute miles
  • Sky: clear
  • Temperature: 64°F (18°C), dew point 0°F (-18°C)

Injuries

FatalSeriousMinorNone
Crew1

Documents from the investigation the NTSB's docket: the evidence folder behind the report

The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.

Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.