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Accidents · NTSB SEA84LA109 · Preliminary: the investigation is not finished

Grumman G-164 accident near Craigmont, Idaho, May 17, 1984

On May 17, 1984 at about 11:15 pm local time, a Grumman G-164, registered N48373, was substantially damaged in an accident near Craigmont, Idaho. It was an aerial application (crop spraying) flight under agricultural flying rules (Part 137). No one was hurt; 1 person was on board or involved. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The NTSB has not yet published a probable cause for this accident. Investigations usually take one to two years; this page updates when the final report is released.

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

What the record shows

Date
May 17, 1984 · about 11:15 pm local time
Place
Craigmont, Idaho · map
Type
Accident
Injuries
No one was hurt; 1 person was on board or involved.
Weather
visual conditions (good weather)
Aircraft
Grumman G-164 · all G-164s on the register
Registration
N48373 · no longer on the register · serial 1618
Damage
Substantial damage
Flight
Aerial application (crop spraying) flight · agricultural flying rules (Part 137)

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

DURING AERIAL APPLICATION THE ENGINE LOST POWER & A FORCED LANDING WAS INITIATED TO A WHEAT FIELD. DURING THE LANDING APPROACH THE ACFT STALLED AT ABOUT 10 TO 20 FEET AGL. THE ACFT LANDED HARD AND FLIPPED OVER. EXAMINATION OF THE ENGINE REVEALED A BROKEN MASTER ROD.

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: multi-engine land; single-engine land
  • Flight time: 9,210 hours in all; 3,500 in this make and model; 200 in the last 90 days
  • Medical certificate: Class 2 (valid medical--no waivers/lim.)
  • Seat: ctr

The aircraft

  • Airframe total time: 3,500 hours
  • Last inspection: 100-hour inspection, January 2, 1984; 20 hours since
  • Maximum gross weight: 6,075 lb
  • Seats: 1
  • Landing gear: fixed
  • Engine: P&W 1340-AN1 (piston); 0 hours total

The flight

  • Flight plan: none
  • Runway 0

Weather at the time

  • Light: daylight
  • Wind: from 310° at 3 knots
  • Visibility: 30 statute miles
  • Sky: broken clouds at 25,000 ft; scat at 4,500 ft
  • Temperature: 70°F (21°C), dew point 34°F (1°C)
  • Observation at 11:00 pm from LWS, 18 miles away

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.