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Accidents · NTSB SEA91LA191 · Final report

Grumman G-164A accident near Hamer, Idaho, July 24, 1991

On July 24, 1991 at about 8:00 pm local time, a Grumman G-164A, registered N6702Q, was substantially damaged in an accident near Hamer, Idaho (Larsen Farms airport). 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 PILOT'S FAILURE TO MAINTAIN RUNWAY ALIGMENT. FACTORS INCLUDE HIGH VEGETATION, AND AN INADVERENT GROUND LOOP/SWERVE.

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

What the record shows

Date
July 24, 1991 · about 8:00 pm local time
Place
Hamer, Idaho · Larsen Farms · map
Type
Accident
Injuries
No one was hurt; 1 person was on board or involved.
Weather
visual conditions (good weather)
Aircraft
Grumman G-164A · all G-164As on the register
Registration
N6702Q · no longer on the register · serial 1707
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 PILOT OF THE GRUMAN G-164A WAS LANDINGG AT A PRIVATE AGRICULTURAL AIRSTRIP, WHEN THE SPRAY BOOM CONTACTED SOME TALL WHEAT GROWING NEAR THE EDGE OF THE RUNWAY. THE PILOT STATED THAT JUST AS THE TAILWHEEL WAS BEING LOWERED TO THE GROUND, THE LEFT WING SPRAY BOOM STRUCK THE WHEAT, CAUSING THE AIRCRAFT TO TURN SHARPLY TO THE LET. THE AIRCRAFT THE BEGAN TO SLIDE SIDEWAYS, EVENTUALLY COLLAPSING THE RIGHT MAIN GEAR.

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
  • Flight time: 3,256 hours in all; 350 in this make and model; 3,200 as pilot in command
  • Medical certificate: Class 2 (valid medical--no waivers/lim.)
  • Seat: ctr

The aircraft

  • Airframe total time: 1,185 hours
  • Last inspection: annual inspection, May 23, 1991; 200 hours since
  • Maximum gross weight: 5,500 lb
  • Seats: 1
  • Landing gear: fixed
  • Engine: Garrett TPE3312201A (turboprop); 0 hours total
  • Operator: Overland AG INC

The flight

  • Flight plan: none
  • Runway 18, 3,000 ft by 50 ft

Weather at the time

  • Light: daylight
  • Visibility: 50 statute miles
  • Sky: clear
  • Temperature: 90°F (32°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.

Other NTSB records under N6702Q the same tail number, which may have belonged to a different aircraft at the time

2008-08-18SEA08CA183 · accident near Hazelton, ID · substantial damage · minor injuries
2005-07-19SEA05LA146 · accident near Jerome, ID · substantial damage · no injuries

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.